JP7215270B2 - ケースの製造方法 - Google Patents
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
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- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
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- 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
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- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- 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
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Condensed Matter Physics & Semiconductors (AREA)
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- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Secondary Cells (AREA)
- Fuel Cell (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Description
前記積層体と接触して対向する2つの接触部と、
前記2つの接触部を接続する2つのバネ構造と、
を有する。
このようなケースの製造方法によれば、繊維強化プラスチック製で高強度のケースを製造できる。
対向する2つの接触部と、前記2つの接触部を接続する2つのバネ構造と、を有するケースと、
2個以上の全固体燃料電池セルが積層した積層体と、を有し、
前記積層体が前記ケース内に挿入され、前記積層体の積層方向両端が前記2つの接触部とそれぞれ接触し、
前記2つの接触部が前記積層体の積層方向に押圧している。
なお、本発明において、「硬化」とは、樹脂同士や、樹脂と架橋剤とが化学反応を経て硬化する場合、及び、樹脂が化学反応を経ずにガラス転移温度以下への冷却等により硬化する場合を含む。
本実施形態においてバネ構造12は、当該バネ構造12の長さ方向(X軸方向)の力に応じて伸縮し、復元力を生じる構造である。例えば金属やCFRPの場合、材料自体の伸び率は小さいため形状によりバネ構造12を達成する。バネ構造12の形状の具体例としては、図1の例に示されるように湾曲した形状であってもよく、図5の例に示されるように折れ曲がりのある形状であってもよく、図6の例に示されるように波型(凹凸型)の形状であってもよい。
積層体20は、全固体電池セル21からなる積層体であってもよいが、全固体電池セル21の積層体の積層方向両端にさらにエンドプレート22を有する積層体であってもよい。エンドプレート22の材質としては、金属やCFRP等が挙げられ、ケース10との接触面のエッジが面取り加工(R加工)されていることが好ましい。このようなエンドプレートを配置することによりケース10の一部に負荷が集中することが抑制される。
また、積層体の積層方向厚み(以下単に厚みということがある)をbとする。図3中のbmは積層体20が最も収縮した状態における積層体20の厚みである。
積層体20収容時のケース10の長径aは、積層体20の厚みbと一致する。図3に示されるように本実施形態のケース10は、積層体の厚みが最小値bmとなったときにも、積層体を押圧していることが好ましい。このような観点から、接触部11間の初期状態の距離a0が積層体の厚みの最小値bmよりも小さいことが好ましい。
本実施形態のケース10は、収容予定の積層体の厚みbmを考慮して設計すればよい。
本実施形態のケース10は収容する積層体20が膨張すると、バネ構造12が押し広げられてケース10の長径aは膨張後の積層体の厚みbまで伸びる。その結果、圧力変化は緩和されて、過度に高い圧力がかかることが抑制される。
さらに、上記第1の挿入方法と第2の挿入方法を組み合わせてもよい。即ち、ケース10を押し広げ、且つ、積層体20を押し縮めることで、(積層体の厚みb)<(ケースの長径a)の状態として積層体を挿入する。この方法によれば、積層体側に過度な負荷をかけることなくケースに積層体を挿入できる。
炭素繊維に含浸させる樹脂は、熱硬化性樹脂であってもよく、熱可塑性樹脂であってもよい。熱硬化性樹脂の場合、通常、架橋剤(熱硬化剤)を組み合わせて用いる。
本製造方法では、ケース10用の型(マンドレル)を準備する。これとは別に、熱硬化性樹脂、又は加熱して流動化した熱可塑性樹脂中に炭素繊維を浸漬することにより、炭素繊維に樹脂を含浸させる。次いで、型を回転させながら炭素繊維をフィラメントワインディング法(FW法)により所定の厚みとなるまで巻きつける。次いで、樹脂を硬化することによりケース10が製造できる。当該第1の製造方法によれば長い炭素繊維を巻きつけるため機械強度に優れたケース10を得ることができる。
このような第3の又は第4の製造方法によれば凹凸型形状のケースを好適に製造することができる。
Claims (4)
- 積層体を収容し、前記積層体と接触して対向する2つの接触部と、前記2つの接触部を接続する2つのバネ構造と、を有し、繊維強化プラスチック製であるケースの製造方法であって、
樹脂を含浸させた炭素繊維を型に巻きつける工程と、
樹脂を硬化する工程と、を有する、
ケースの製造方法。 - 前記樹脂を含浸させた炭素繊維がシート状である、
請求項1に記載のケースの製造方法。 - 前記型に巻きつける工程において、
前記炭素繊維を型に追従するように押し付けながら巻きつける、
請求項1又は2に記載のケースの製造方法。 - 前記型に巻きつける工程の後、
前記型を中子型とし、外型を用いてプレスする工程を有する、
請求項1又は2に記載のケースの製造方法。
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JP2019054179A JP7215270B2 (ja) | 2019-03-22 | 2019-03-22 | ケースの製造方法 |
US16/800,120 US11695152B2 (en) | 2019-03-22 | 2020-02-25 | Case and method for manufacturing the same, method for inserting stacked body, and cell stack |
CN202010209624.XA CN111725451A (zh) | 2019-03-22 | 2020-03-23 | 盒体及其制造方法、层叠体的插入方法以及电池堆 |
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EP4057405A1 (en) * | 2021-03-10 | 2022-09-14 | Crompton Technology Group Limited | Battery stack casing |
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CN113193278A (zh) * | 2021-04-28 | 2021-07-30 | 宁德新能源科技有限公司 | 电池模组和用电设备 |
US20230307769A1 (en) * | 2022-03-23 | 2023-09-28 | Ford Global Technologies, Llc | Methods for assembling traction battery packs |
US20230402693A1 (en) * | 2022-06-14 | 2023-12-14 | Beta Air, Llc | Battery pack for a carbon fiber pouch cell casing configured to cool battery cells |
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Citations (7)
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