JP2000277177A - Secondary battery module - Google Patents
Secondary battery moduleInfo
- Publication number
- JP2000277177A JP2000277177A JP8536399A JP8536399A JP2000277177A JP 2000277177 A JP2000277177 A JP 2000277177A JP 8536399 A JP8536399 A JP 8536399A JP 8536399 A JP8536399 A JP 8536399A JP 2000277177 A JP2000277177 A JP 2000277177A
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- battery module
- heat
- temperature
- heat pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ナトリウム硫黄電
池などの二次電池を集合させてモジュールを構成した二
次電池モジュールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary battery module formed by assembling secondary batteries such as sodium-sulfur batteries.
【０００２】[0002]
【従来の技術】電力の安定化をはかるうえで、電力消費
の平準化を図り、電力の効率的な利用が求められてい
る。電力消費の平準化に、ナトリウム硫黄電池などの二
次電池を用いて電力を貯蔵する試みがなされている。ナ
トリウム硫黄電池は、図１２に示すように、断熱容器２
内に複数本の単電池１を集合させて、ヒータなどの加熱
手段によって、単電池の動作温度（３００〜３３０℃）
に保つように構成されている。単電池の周りには、一般
に砂やセラミック粒などの充填材あるいは、セラミック
や金属製のスペーサが置かれている。電池は、１日の電
力需要に合わせて、充電−待機−放電−待機のサイクル
が繰り返される。このとき、電気抵抗損失や反応損失に
より電池が発熱し、電池温度が上昇する。そのため、１
日の充放電サイクルで、電池温度が適性な動作温度範囲
に収まるように断熱容器の放熱量は設計される。また、
別の例では、ヒートパイプなどの冷却手段を用いて、単
電池の発熱が増加した場合に電池を冷却させるものとし
て特開平9−120835号，特開平9−298070号公報が知られ
ている。2. Description of the Related Art In order to stabilize electric power, it is required to level electric power consumption and to use electric power efficiently. Attempts have been made to store power using a secondary battery such as a sodium-sulfur battery for leveling power consumption. The sodium-sulfur battery is, as shown in FIG.
A plurality of unit cells 1 are assembled in a cell, and the operating temperature of the unit cells (300 to 330 ° C.) is heated by a heating means such as a heater.
It is configured to keep. Generally, a filler such as sand or ceramic particles, or a ceramic or metal spacer is placed around the unit cell. The battery repeats a charge-standby-discharge-standby cycle according to the power demand of the day. At this time, the battery generates heat due to electric resistance loss and reaction loss, and the battery temperature rises. Therefore, 1
The heat release amount of the heat insulating container is designed so that the battery temperature falls within an appropriate operating temperature range in a daily charge / discharge cycle. Also,
As another example, Japanese Patent Application Laid-Open Nos. 9-120835 and 9-298070 are known for cooling a battery when heat generation of a unit cell increases by using a cooling means such as a heat pipe.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、元来、
断熱容器の保温性能は、エネルギー効率を高めるために
できるだけ高く設計することが求められる。また、ヒー
トパイプによる冷却では、単電池の動作温度以下での放
熱が抑制されている。したがって、これらの電池モジュ
ールでは、当初設定した動作温度以下での放熱量が少な
い。そのため、従来の電池モジュールは電池降温に時間
を要し、保守点検の工期が長く、故障や災害時に電池を
速やかに停止できないなどの問題があった。また、寿命
末に電池の内部抵抗が増加し、発熱が増加したときに、
新たに放熱量を増加させる手段が必要であった。However, originally,
The heat insulation performance of the insulated container needs to be designed as high as possible in order to increase energy efficiency. Moreover, in the cooling by the heat pipe, the heat radiation below the operating temperature of the unit cell is suppressed. Therefore, in these battery modules, the amount of heat radiation below the initially set operating temperature is small. Therefore, the conventional battery module has a problem that it takes a long time to lower the temperature of the battery, the period of maintenance and inspection is long, and the battery cannot be stopped immediately in the event of a failure or disaster. Also, when the internal resistance of the battery increases at the end of its life and the heat generation increases,
A means for newly increasing the amount of heat radiation was required.
【０００４】本発明の目的は、エネルギー効率を維持
し、かつ、放熱量を可変できる二次電池モジュール構造
を提供することにある。[0004] It is an object of the present invention to provide a secondary battery module structure that can maintain energy efficiency and vary the amount of heat radiation.
【０００５】[0005]
【課題を解決するための手段】本発明は、ナトリウム硫
黄電池などの複数本の二次単電池を断熱容器に集合させ
てモジュールを構成した二次電池モジュールにおいて、
二次電池モジュールの温度を一定に保つ放熱量を有する
冷却手段を備え、冷却手段の放熱量を可変する制御手段
を有することを特徴とする。SUMMARY OF THE INVENTION The present invention relates to a secondary battery module comprising a plurality of secondary cells such as a sodium-sulfur battery assembled in an insulated container to form a module.
A cooling means having a heat radiation amount for keeping the temperature of the secondary battery module constant is provided, and a control means for varying the heat radiation amount of the cooling means is provided.
【０００６】冷却手段には、内部に作動媒体および非凝
縮性ガスが封入された可変コンダクタンス型ヒートパイ
プが、制御手段にはヒートパイプの内容積が可変するヒ
ートパイプ構造がよい。The cooling means is preferably a variable conductance heat pipe in which a working medium and a non-condensable gas are sealed, and the control means is preferably a heat pipe structure in which the internal volume of the heat pipe is variable.
【０００７】ヒートパイプの内容積が可変するヒートパ
イプ構造は、ヒートパイプの放熱部とガス溜部の間に開
閉バルブを設置することで達成される。二次電池の温度
を保つ場合には開閉バルブを開け、二次電池の温度を下
げる場合には、二次電池の放電末に開閉バルブを閉め
る。[0007] A heat pipe structure in which the internal volume of the heat pipe is variable is achieved by installing an open / close valve between the heat radiating portion and the gas reservoir of the heat pipe. To maintain the temperature of the secondary battery, open and close the open / close valve. To lower the temperature of the secondary battery, close the open / close valve at the end of discharge of the secondary battery.
【０００８】ヒートパイプのガス溜部に開閉バルブを挟
んで補助タンクを配し、二次電池の温度を保つ場合に開
閉バルブを閉め、二次電池の温度を下げる場合には、開
閉バルブを開けることでもよい。An auxiliary tank is arranged in the gas reservoir of the heat pipe with an open / close valve interposed therebetween. The open / close valve is closed when the temperature of the secondary battery is maintained, and the open / close valve is opened when the temperature of the secondary battery is lowered. It may be.
【０００９】さらに、ヒートパイプのガス溜部の内容積
が変化する構造（例えば、ベローズ構造）にし、二次電
池の温度を下げる場合には、ガス溜部の内部に容積を大
きくすることでもよい。Further, in order to reduce the temperature of the secondary battery by using a structure in which the internal volume of the gas reservoir of the heat pipe changes (for example, a bellows structure), the volume inside the gas reservoir may be increased. .
【００１０】また、ガス溜部に開閉バルブを設置し、二
次電池の温度を下げる場合には、開閉バルブを開けて、
非凝縮性ガスを外部に放出させる。In addition, when an on-off valve is installed in the gas reservoir to lower the temperature of the secondary battery, the on-off valve is opened and
The non-condensable gas is released to the outside.
【００１１】ヒートパイプを用いない場合には、断熱容
器として用いたガス圧を調整した真空容器に開閉バルブ
を設置し、二次電池の温度を下げる場合には、開閉バル
ブを開けて、ガスを真空容器内に導入する。When a heat pipe is not used, an open / close valve is installed in a vacuum vessel used as a heat insulating vessel and in which the gas pressure is adjusted, and when the temperature of the secondary battery is lowered, the open / close valve is opened and gas is released. Introduce into a vacuum vessel.
【００１２】これらの制御は、二次電池の電圧あるいは
電流の値に応じて制御される。あるいは、二次電池の温
度，冷却手段の温度，外部の緊急信号に応じて制御され
る。本発明によれば、内部に作動媒体および非凝縮性ガ
スが封入された可変コンダクタンス型ヒートパイプにお
いて、ヒートパイプの内容積を可変させることで、非凝
縮性ガスのガス圧・容積が変化し、ヒートパイプの作動
温度が変化する。ヒートパイプの放熱部とガス溜部の間
に開閉バルブを設置し、二次電池の温度を保つ場合には
開閉バルブを開け、二次電池の温度を下げる場合には、
二次電池の放電末に開閉バルブを閉めることで、ヒート
パイプの作動温度が低下する。[0012] These controls are controlled according to the voltage or current value of the secondary battery. Alternatively, it is controlled according to the temperature of the secondary battery, the temperature of the cooling means, and an external emergency signal. According to the present invention, in the variable conductance type heat pipe in which the working medium and the non-condensable gas are sealed, by changing the internal volume of the heat pipe, the gas pressure and volume of the non-condensable gas change, The operating temperature of the heat pipe changes. Install an open / close valve between the heat radiating part of the heat pipe and the gas reservoir, open the open / close valve to keep the temperature of the secondary battery, and to lower the temperature of the secondary battery,
By closing the open / close valve at the end of discharge of the secondary battery, the operating temperature of the heat pipe decreases.
【００１３】また、ヒートパイプのガス溜部に開閉バル
ブを挟んで補助タンクを配し、二次電池の温度を保つ場
合に開閉バルブを閉め、二次電池の温度を下げる場合に
は、開閉バルブを開けることでも同様の作用をする。Further, an auxiliary tank is arranged in the gas reservoir of the heat pipe with an open / close valve interposed therebetween. The open / close valve is closed when the temperature of the secondary battery is maintained, and the open / close valve is used when the temperature of the secondary battery is lowered. Opening has the same effect.
【００１４】また、ヒートパイプのガス溜部の内容積が
変化する構造（例えば、ベローズ構造）にし、内容積を
増加させたり、ガス溜部に開閉バルブを設置し、開閉バ
ルブ開けて、非凝縮性ガスを外部に放出させても同様の
作用をする。[0014] Further, a structure in which the internal volume of the gas reservoir of the heat pipe changes (for example, a bellows structure) may be used to increase the internal volume, or an open / close valve may be installed in the gas reservoir, and the open / close valve may be opened to prevent non-condensation. The same effect is obtained even when the reactive gas is released to the outside.
【００１５】ヒートパイプを用いない場合には、断熱容
器として用いたガス圧を調整した真空容器にガスを導入
することで、放熱量を変えることができる。When a heat pipe is not used, the amount of heat radiation can be changed by introducing a gas into a vacuum vessel used as a heat insulating vessel and having a regulated gas pressure.
【００１６】これらの制御は、二次電池の電圧あるいは
電流の値、あるいは、二次電池の温度，冷却手段の温
度，外部の緊急信号に応じて行うことで、適切な動作時
期を設定できる。These operations are performed according to the value of the voltage or current of the secondary battery, or the temperature of the secondary battery, the temperature of the cooling means, or an external emergency signal, so that an appropriate operation timing can be set.
【００１７】[0017]
【発明の実施の形態】以下、図面を参照し、実施例につ
いて本発明を詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings with reference to the drawings.
【００１８】図１は本発明の第１の実施例を示す図であ
る。図１２の従来の電池モジュールのように、単電池１
は断熱容器２内に集合配置されている。断熱容器２を貫
き、内部に作動媒体および非凝縮性ガスが封入され、受
熱部４と放熱部５とガス溜部６を有した可変コンダクタ
ンス型ヒートパイプ３が設置されている。放熱部５は気
体や液体を用いて強制冷却する熱交換器あるいは自然空
冷するフィンのみでもよい。形状については、平板型や
円筒型など様々なものが使用できる。放熱部５とガス溜
部６の間には、開閉バルブ７が配してある。通常、開閉
バルブ７は開にしておく。FIG. 1 is a diagram showing a first embodiment of the present invention. As shown in the conventional battery module of FIG.
Are collectively arranged in the heat insulating container 2. A working medium and a non-condensable gas are sealed inside the heat insulating container 2, and a variable conductance type heat pipe 3 having a heat receiving part 4, a heat radiating part 5 and a gas storage part 6 is provided. The radiator 5 may be a heat exchanger for forced cooling using gas or liquid or a fin for natural air cooling. Various shapes such as a flat plate type and a cylindrical type can be used. An on-off valve 7 is arranged between the heat radiating section 5 and the gas storage section 6. Normally, the open / close valve 7 is kept open.
【００１９】ヒートパイプは、液体の蒸発潜熱を利用し
ているため、熱輸送能力が高い。通常のヒートパイプ内
に非凝縮性のガスを封入しておき、ヒートパイプを働か
せたい所定の温度以上でのみ凝縮部が機能し、所定の温
度以下では凝縮部が封入された非凝縮性のガスで覆わ
れ、冷却機能を果たさないようにすることができる。こ
のような機能を持つヒートパイプが、可変コンダクタン
ス型ヒートパイプ（以下、ＶＣＨＰ）と呼ばれる。図２
にＶＣＨＰの基本構造を示す。図２(ａ)は電池待機時を
示し、ＶＣＨＰの受熱部のコンテナ内には、作動媒体の
蒸気が、受熱部には非凝縮ガスが満たされている。この
状態では、作動媒体の蒸気が放熱部で凝縮することが妨
げられるため、ヒートパイプとして機能しない。図２
(ｂ)は電池放電時のＶＣＨＰの状態を示している。加熱
部の熱量が増加すると、作動媒体の蒸気圧が上がり、非
凝縮ガスを圧縮し、放熱部に作動媒体の蒸気が到達して
放熱部の凝縮域が長くなる。凝縮域が長くなると、放熱
量が増大し、ＶＣＨＰの加熱部は熱量が増加しても、あ
る温度範囲内に保たれるようになる。なお、作動状態と
なる温度は、封入する非凝縮ガス量・ガス圧を制御する
ことにより任意に決定できる。モジュール電池にＶＣＨ
Ｐを適用すれば、放電に伴う発熱が大きくなりモジュー
ル内がある温度以上になった時点でＶＣＨＰが作動を開
始し、モジュール内部の温度を適正な範囲に維持でき
る。図２(ｂ)の作動状態において、バルブ７を閉めると
非凝縮ガスはガス溜に閉じ込められる。この図２(ｃ)状
態では、非凝縮ガスが放熱部に影響しなくなるため、作
動媒体の蒸気は、放熱部に達し、受熱部の温度が低下し
てもヒートパイプとして機能する。このときのＶＣＨＰ
の放熱特性を図３に示す。バルブを閉めることで、ＶＣ
ＨＰの放熱開始温度が下がり、電池降温中でもＶＣＨＰ
は放熱するようになる。Since the heat pipe utilizes the latent heat of vaporization of the liquid, the heat pipe has a high heat transport capability. A non-condensable gas is sealed in a normal heat pipe, and the condensing part functions only at a predetermined temperature or higher at which the heat pipe is to be operated. So that the cooling function is not performed. A heat pipe having such a function is called a variable conductance type heat pipe (hereinafter, VCHP). FIG.
Shows the basic structure of VCHP. FIG. 2A shows a standby state of the battery, in which the container of the VCHP heat receiving unit is filled with the vapor of the working medium and the heat receiving unit is filled with the non-condensable gas. In this state, since the vapor of the working medium is prevented from being condensed in the heat radiating portion, it does not function as a heat pipe. FIG.
(b) shows the state of VCHP at the time of battery discharge. When the calorie of the heating section increases, the vapor pressure of the working medium increases, compresses the non-condensable gas, and the vapor of the working medium reaches the heat radiating section, so that the condensation area of the heat radiating section becomes longer. As the condensation zone becomes longer, the amount of heat radiation increases, and the heating section of the VCHP is kept within a certain temperature range even if the amount of heat increases. The operating temperature can be arbitrarily determined by controlling the amount of non-condensable gas to be sealed and the gas pressure. VCH for module battery
If P is applied, the VCHP starts operating when the heat generated by the discharge increases and the temperature inside the module reaches a certain temperature or higher, and the temperature inside the module can be maintained in an appropriate range. In the operating state of FIG. 2B, when the valve 7 is closed, the non-condensable gas is trapped in the gas reservoir. In the state shown in FIG. 2C, the non-condensed gas does not affect the heat radiating portion, so that the vapor of the working medium reaches the heat radiating portion and functions as a heat pipe even if the temperature of the heat receiving portion decreases. VCHP at this time
FIG. By closing the valve, VC
The heat radiation start temperature of the HP decreases, and even when the battery temperature drops, the VCHP
Will radiate heat.
【００２０】図４は本発明の第１の実施例のバルブ操作
時期を示す図である。電池は放電すると電気抵抗損失や
反応損失による発熱で温度が上昇する。充電までの待機
時間，充電期間に温度は降下する。放電末時期に、電池
温度が最高になり、ＶＣＨＰ内部の非凝縮性ガスがもっ
ともガス溜に押しやられており、ここでバルブを閉める
のが、もっともＶＣＨＰの作動温度低減に効果がある。FIG. 4 is a diagram showing the valve operation timing according to the first embodiment of the present invention. When a battery is discharged, the temperature rises due to heat generated by electric resistance loss and reaction loss. The temperature drops during the waiting time until charging and during the charging period. At the end of discharge, the battery temperature becomes highest, and the non-condensable gas inside the VCHP is pushed to the gas reservoir most. Closing the valve here is the most effective in reducing the operating temperature of the VCHP.
【００２１】なお、本発明の冷却手段は、二次電池モジ
ュール以外の高温機器の保温にも適用可能である。Incidentally, the cooling means of the present invention can be applied to heat retention of high-temperature equipment other than the secondary battery module.
【００２２】図５は本発明の第２の実施例を示す図であ
る。ＶＣＨＰのガス溜部６に開閉バルブ７を挟んで補助
タンク８を設けておく。電池降温時に、開閉バルブ７を
開け、非凝縮性ガスを補助タンク８に逃がす。ＶＣＨＰ
の非凝縮性ガスの圧力が低下し、ＶＣＨＰの作動温度が
低下する。図６は本発明の第２の実施例のバルブ操作時
期を示す図である。この場合には、バルブを開ける時期
は特定されない。いつでもバルブを開けることでＶＣＨ
Ｐの作動温度が低下し、電池は降温を始める。なお、補
助タンクの数を増やすことで、ＶＣＨＰの作動温度を段
階的に選択できるようになる。FIG. 5 is a diagram showing a second embodiment of the present invention. An auxiliary tank 8 is provided in the VCHP gas reservoir 6 with an open / close valve 7 interposed therebetween. When the temperature of the battery drops, the on-off valve 7 is opened, and the non-condensable gas is released to the auxiliary tank 8. VCHP
, The pressure of the non-condensable gas decreases, and the operating temperature of the VCHP decreases. FIG. 6 is a diagram showing the valve operation timing according to the second embodiment of the present invention. In this case, the timing for opening the valve is not specified. Open the valve at any time for VCH
The operating temperature of P decreases and the battery begins to cool down. By increasing the number of auxiliary tanks, the operating temperature of VCHP can be selected stepwise.
【００２３】図７は本発明の第３の実施例を示す図であ
る。ＶＣＨＰのガス溜部をベローズ構造にする。降温さ
せる時には駆動手段１０によりベローズ型ガス溜部９の
内容積を大きくして、非凝縮性ガスの圧力を低下させ
る。ベローズを元の大きさに戻せば、ＶＣＨＰの作動温
度は初期値に戻る。FIG. 7 is a diagram showing a third embodiment of the present invention. The VCHP gas reservoir has a bellows structure. When the temperature is lowered, the internal volume of the bellows type gas reservoir 9 is increased by the driving means 10 to reduce the pressure of the non-condensable gas. When the bellows is returned to its original size, the operating temperature of the VCHP returns to the initial value.
【００２４】図８は本発明の第４の実施例を示す図であ
る。ＶＣＨＰのガス溜部の中にベローズ１１を設ける。
降温時には開閉バルブ７開け、ベローズ１１の内圧を下
げて、ベローズ構造の容積を小さくして非凝縮性ガスの
圧力を低下させる。本発明は、ベローズ内のガス圧を調
整してベローズの大きさを制御するものである。FIG. 8 is a diagram showing a fourth embodiment of the present invention. Bellows 11 is provided in the gas reservoir of VCHP.
At the time of temperature decrease, the opening and closing valve 7 is opened, the internal pressure of the bellows 11 is reduced, the volume of the bellows structure is reduced, and the pressure of the non-condensable gas is reduced. In the present invention, the size of the bellows is controlled by adjusting the gas pressure in the bellows.
【００２５】図９は本発明の第５の実施例を示す図であ
る。ＶＣＨＰのガス溜部に開閉バルブ７を設け、降温時
に開閉バルブ７を開け、非凝縮性ガスを外部に逃がし、
VCHPの作動温度を低下させる。もっとも構造がシンプル
になる。FIG. 9 is a diagram showing a fifth embodiment of the present invention. An opening / closing valve 7 is provided in a gas reservoir of the VCHP, and the opening / closing valve 7 is opened at the time of temperature decrease to allow non-condensable gas to escape to the outside,
Reduce the operating temperature of VCHP. Most simple structure.
【００２６】図１０は本発明の第６の実施例を示す図で
ある。断熱容器２として用いた真空容器に開閉バルブ７
を設け、降温時に開閉バルブ７を開け、ガスを導入す
る。これにより放熱量が増加する。再び、もとの放熱量
に戻すには、ガス排気を行い、真空度を初期値に戻す。FIG. 10 is a diagram showing a sixth embodiment of the present invention. The opening / closing valve 7 is provided in the vacuum container used as the heat insulating container 2.
Is provided, and when the temperature is lowered, the opening / closing valve 7 is opened to introduce gas. This increases the amount of heat radiation. To return to the original heat radiation amount again, gas is exhausted and the degree of vacuum is returned to the initial value.
【００２７】図１１は本発明の第１の実施例のシステム
構造の具体例を示す図である。電池モジュールには、温
度センサー１４を配し、温度信号１５，電圧・電流信号
１３を取り込む計測・制御装置１２を備えている。ま
た、計測・制御装置１２には、外部からの警報信号１６
を取り込むことができる。電圧・電流や温度上昇により
異常の有無を判定して、制御信号１７により開閉バルブ
７を駆動させ、電池の降温を開始する。外部からの警報
信号があったときも同様に制御信号１７により開閉バル
ブ７を駆動させる。FIG. 11 is a diagram showing a specific example of the system structure of the first embodiment of the present invention. The battery module is provided with a temperature sensor 14 and a measurement / control device 12 for taking in a temperature signal 15 and a voltage / current signal 13. The measurement / control device 12 also includes an external alarm signal 16.
Can be captured. The presence / absence of abnormality is determined based on the voltage / current or temperature rise, and the open / close valve 7 is driven by the control signal 17 to start lowering the temperature of the battery. Similarly, when there is an alarm signal from outside, the opening / closing valve 7 is driven by the control signal 17.
【００２８】[0028]
【発明の効果】以上説明したように本発明によれば、上
記いずれかの手段でＶＣＨＰ放熱部の非凝縮性ガス量の
低減を行い、ＶＣＨＰの放熱開始温度を下げ、放熱量を
増加させることができ、これにより電池降温時間が短く
なり、保守点検時の工期短縮，災害時の安全性確保がで
きるようになる。また、寿命末に電池の内部抵抗が増加
し発熱が増加したときの放熱量を増加させる手段とな
る。As described above, according to the present invention, the amount of non-condensable gas in the VCHP radiating section is reduced by any of the above means, thereby lowering the VCHP radiation start temperature and increasing the amount of radiation. As a result, the battery cooling time can be shortened, the work period for maintenance and inspection can be shortened, and safety in the event of a disaster can be ensured. Also, it is a means for increasing the amount of heat radiation when the internal resistance of the battery increases at the end of the life and the heat generation increases.
【図１】本発明の第１の実施例の構造図。FIG. 1 is a structural diagram of a first embodiment of the present invention.
【図２】本発明によるＶＣＨＰの動作原理図。FIG. 2 is an operation principle diagram of the VCHP according to the present invention.
【図３】本発明によるＶＣＨＰの放熱特性図。FIG. 3 is a heat radiation characteristic diagram of the VCHP according to the present invention.
【図４】本発明の第１の実施例の運転シーケンス図。FIG. 4 is an operation sequence diagram of the first embodiment of the present invention.
【図５】本発明の第２の実施例の構造図。FIG. 5 is a structural diagram of a second embodiment of the present invention.
【図６】本発明の第２の実施例の運転シーケンス図。FIG. 6 is an operation sequence diagram of the second embodiment of the present invention.
【図７】本発明の第３の実施例の構造図。FIG. 7 is a structural diagram of a third embodiment of the present invention.
【図８】本発明の第４の実施例の構造図。FIG. 8 is a structural diagram of a fourth embodiment of the present invention.
【図９】本発明の第５の実施例の構造図。FIG. 9 is a structural view of a fifth embodiment of the present invention.
【図１０】本発明の第６の実施例の構造図。FIG. 10 is a structural diagram of a sixth embodiment of the present invention.
【図１１】本発明のシステム構成図。FIG. 11 is a system configuration diagram of the present invention.
【図１２】従来例の構造図。FIG. 12 is a structural view of a conventional example.
１…単電池、２…断熱容器、３…ヒートパイプ、４…受
熱部、５…放熱部、６…ガス溜部、７…開閉バルブ、８
…補助タンク、９…ベローズ型ガス溜、１０…駆動装
置、１１…ベローズ、１２…計測・制御装置、１３…電
圧・電流信号、１４…温度センサー、１５…温度信号、
１６…外部警報信号、１７…制御信号。DESCRIPTION OF SYMBOLS 1 ... Single cell, 2 ... Heat insulation container, 3 ... Heat pipe, 4 ... Heat receiving part, 5 ... Heat radiating part, 6 ... Gas reservoir, 7 ... Opening / closing valve, 8
... Auxiliary tank, 9 ... Bellows type gas reservoir, 10 ... Driver, 11 ... Bellows, 12 ... Measurement / control device, 13 ... Voltage / current signal, 14 ... Temperature sensor, 15 ... Temperature signal,
16: external alarm signal, 17: control signal.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 床井 博見 茨城県日立市大みか町七丁目２番１号 株 式会社日立製作所電力・電機開発本部内 (72)発明者 綿引 直久 茨城県日立市大みか町七丁目２番１号 株 式会社日立製作所電力・電機開発本部内 (72)発明者 渡辺 健次 神奈川県横浜市鶴見区江ヶ崎町４番１号 東京電力株式会社エネルギー・環境研究所 内 Ｆターム(参考） 5E322 AA11 AB11 CA06 DA02 DB10 EA11 FA01 FA02 5H031 AA05 AA09 CC09 HH01 HH06 KK01 KK02 KK08 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiromi Torai 7-2-1, Omika-cho, Hitachi City, Ibaraki Prefecture Inside Power & Electricity Development Division, Hitachi, Ltd. 7-2 cho-cho, Hitachi, Ltd. Power and Electricity Development Division (72) Inventor Kenji Watanabe 4-1, Egasaki-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Pref. Terms (reference) 5E322 AA11 AB11 CA06 DA02 DB10 EA11 FA01 FA02 5H031 AA05 AA09 CC09 HH01 HH06 KK01 KK02 KK08
Claims (12)
次電池モジュールであって、該二次電池モジュールの温
度を一定に保つ冷却手段と、該冷却手段の放熱量を可変
する制御手段を有することを特徴とする二次電池モジュ
ール。1. A rechargeable battery module comprising a plurality of rechargeable cells in a heat insulating container, wherein a cooling means for keeping the temperature of the rechargeable battery module constant, and a heat radiation amount of the cooling means are varied. A secondary battery module comprising a control unit.
作動媒体及び非圧縮性ガスが封入された可変コンダクタ
ンス型ヒートパイプであることを特徴とする二次電池モ
ジュール。2. The secondary battery module according to claim 1, wherein said cooling means is a variable conductance type heat pipe in which a working medium and an incompressible gas are sealed.
パイプの内容積が可変するヒートパイプ構造であること
を特徴とする二次電池モジュール。3. The secondary battery module according to claim 1, wherein the control means has a heat pipe structure in which the internal volume of the heat pipe is variable.
は、ヒートパイプの放熱部とガス溜部の間に二次電池の
温度を制御する開閉バルブを配置して形成されることを
特徴とする二次電池モジュール。4. The control means according to claim 1, wherein an opening / closing valve for controlling the temperature of the secondary battery is arranged between the heat radiating portion and the gas reservoir of the heat pipe. Secondary battery module.
は、ヒートパイプのガス溜部に二次電池の温度を制御す
る開閉バルブを挟んで補助タンクを配置して形成される
ことを特徴とする二次電池モジュール。5. The control means according to claim 1, wherein an auxiliary tank is arranged in a gas reservoir of the heat pipe with an opening / closing valve for controlling the temperature of the secondary battery interposed therebetween. Secondary battery module.
パイプのガス溜部の内容積が変化する構造を有すること
を特徴とする二次電池モジュール。6. A secondary battery module according to claim 1, wherein said control means has a structure in which the internal volume of a gas reservoir of a heat pipe changes.
いて、前記可変コンダクタンス型ヒートパイプは、受熱
部と放熱部とガス溜部を有することを特徴とする二次電
池モジュール。7. The secondary battery module according to claim 2, wherein the variable conductance type heat pipe has a heat receiving section, a heat radiating section, and a gas storage section.
は、ベローズ構造であることを特徴とする二次電池モジ
ュール。8. The secondary battery module according to claim 6, wherein the internal structure of the gas reservoir has a bellows structure.
ヒートパイプのガス溜部に開閉バルブを有し、二次電池
の温度を下げる場合には、この開閉バルブを開けて、非
凝縮性ガスを外部に放出することを特徴とする二次電池
モジュール。9. The control means according to claim 1 or 3,
A secondary battery module having an open / close valve in a gas reservoir of a heat pipe and opening the open / close valve to release a non-condensable gas to the outside when the temperature of the secondary battery is lowered.
は、二次電池の電圧あるいは電流の値に応じて制御され
ることを特徴とする二次電池モジュール。10. A secondary battery module according to claim 1, wherein the control means is controlled in accordance with the voltage or current value of the secondary battery.
は、二次電池の温度に応じて制御されることを特徴とす
る二次電池モジュール。11. A secondary battery module according to claim 1, wherein the control means is controlled in accordance with the temperature of the secondary battery.
は、前記冷却手段の温度に応じて制御されることを特徴
とする二次電池モジュール。12. A secondary battery module according to claim 1, wherein said control means is controlled in accordance with the temperature of said cooling means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8536399A JP2000277177A (en) | 1999-03-29 | 1999-03-29 | Secondary battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8536399A JP2000277177A (en) | 1999-03-29 | 1999-03-29 | Secondary battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000277177A true JP2000277177A (en) | 2000-10-06 |
Family
ID=13856641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8536399A Pending JP2000277177A (en) | 1999-03-29 | 1999-03-29 | Secondary battery module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000277177A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004538232A (en) * | 2001-08-11 | 2004-12-24 | テキサコ ディベラップメント コーポレイション | Fuel processor with heat pipe cooling |
| JP2008218147A (en) * | 2007-03-02 | 2008-09-18 | Toyota Motor Corp | Temperature control mechanism, and vehicle |
| JP2010050000A (en) * | 2008-08-22 | 2010-03-04 | Sanyo Electric Co Ltd | Power source device for vehicle |
| JP2013511116A (en) * | 2009-11-16 | 2013-03-28 | リ−テック・バッテリー・ゲーエムベーハー | Battery housing for receiving an electrochemical energy storage device |
| WO2016099785A1 (en) * | 2014-12-17 | 2016-06-23 | Google Inc. | Battery pack with variable-conductance heat pipe (vchp) cooling |
| WO2017172305A1 (en) * | 2016-03-28 | 2017-10-05 | Avx Corporation | Solid electrolytic capacitor module with improved planarity |
| WO2018047531A1 (en) * | 2016-09-09 | 2018-03-15 | 株式会社デンソー | Device temperature adjusting apparatus |
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1999
- 1999-03-29 JP JP8536399A patent/JP2000277177A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004538232A (en) * | 2001-08-11 | 2004-12-24 | テキサコ ディベラップメント コーポレイション | Fuel processor with heat pipe cooling |
| JP2008218147A (en) * | 2007-03-02 | 2008-09-18 | Toyota Motor Corp | Temperature control mechanism, and vehicle |
| JP2010050000A (en) * | 2008-08-22 | 2010-03-04 | Sanyo Electric Co Ltd | Power source device for vehicle |
| JP2013511116A (en) * | 2009-11-16 | 2013-03-28 | リ−テック・バッテリー・ゲーエムベーハー | Battery housing for receiving an electrochemical energy storage device |
| US9923252B2 (en) | 2014-12-17 | 2018-03-20 | X Development Llc | Battery pack with variable-conductance heat pipe (VCHP) cooling |
| WO2016099785A1 (en) * | 2014-12-17 | 2016-06-23 | Google Inc. | Battery pack with variable-conductance heat pipe (vchp) cooling |
| WO2017172305A1 (en) * | 2016-03-28 | 2017-10-05 | Avx Corporation | Solid electrolytic capacitor module with improved planarity |
| US9907176B2 (en) | 2016-03-28 | 2018-02-27 | Avx Corporation | Solid electrolytic capacitor module with improved planarity |
| US10123425B2 (en) | 2016-03-28 | 2018-11-06 | Avx Corporation | Solid electrolytic capacitor module with improved planarity |
| WO2018047532A1 (en) * | 2016-09-09 | 2018-03-15 | 株式会社デンソー | Device temperature adjusting apparatus |
| WO2018047531A1 (en) * | 2016-09-09 | 2018-03-15 | 株式会社デンソー | Device temperature adjusting apparatus |
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| CN109690222B (en) * | 2016-09-09 | 2020-07-03 | 株式会社电装 | Equipment temperature adjusting device |
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