Nothing Special   »   [go: up one dir, main page]

CN113826257B - 圆柱形电池及其制造方法 - Google Patents

圆柱形电池及其制造方法 Download PDF

Info

Publication number
CN113826257B
CN113826257B CN202080036207.8A CN202080036207A CN113826257B CN 113826257 B CN113826257 B CN 113826257B CN 202080036207 A CN202080036207 A CN 202080036207A CN 113826257 B CN113826257 B CN 113826257B
Authority
CN
China
Prior art keywords
hole
cylindrical battery
injection tube
electrolyte
vent valve
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.)
Active
Application number
CN202080036207.8A
Other languages
English (en)
Other versions
CN113826257A (zh
Inventor
卢韩娥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lg Energy Solution
Original Assignee
Lg Energy Solution
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lg Energy Solution filed Critical Lg Energy Solution
Publication of CN113826257A publication Critical patent/CN113826257A/zh
Application granted granted Critical
Publication of CN113826257B publication Critical patent/CN113826257B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • H01M50/119—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/155—Lids or covers characterised by the material
    • H01M50/157—Inorganic material
    • H01M50/159—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/191—Inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627—Filling ports
    • H01M50/636—Closing or sealing filling ports, e.g. using lids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Gas Exhaust Devices For Batteries (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Filling, Topping-Up Batteries (AREA)

Abstract

本公开涉及一种圆柱形电池，在该圆柱形电池中，电极组件被安装在金属罐中。包括顶帽、安全通气阀和电流切断构件的帽组件被设置在电极组件的上端，并且安全通气阀具有形成在其上的孔标记。

Description

圆柱形电池及其制造方法
技术领域
相关申请的交叉引用
该申请要求在2019年7月17日向韩国知识产权局提交的韩国专利申请No.10-2019-0086460的权益，其公开内容通过引用以其整体并入本文。
本公开涉及一种圆柱形电池和一种用于制造该圆柱形电池的方法。
背景技术
随着由于化石燃料的枯竭而导致能源价格正在上涨并且对环境污染的关注正在增加，对环境友好的可替代能源的需求成为未来生活的重要因素。因此，正在进行对于用于产生诸如核能、太阳能、风能和潮汐能的各种动力的技术的研究，并且用于更有效地使用所产生的能量的电力存储设备也备受关注。
而且，随着移动装置技术不断发展并且对这种移动装置的需求不断增加，对作为能源的电池的需求正在快速地增加。相应地，已经进行了对能够满足各种需要的电池的大量研究。特别地，就用于电池的材料而言，对具有诸如高的能量密度、放电电压和输出稳定性的优点的锂二次电池(诸如锂离子电池和锂离子聚合物电池)的需求非常大。
二次电池可以基于电极组件的结构进行分类，该电极组件具有在分隔件介于正电极和负电极之间的状态下正电极和负电极被堆叠的结构。例如，电极组件可以被构造成具有：果冻卷(卷绕)型结构，在该果冻卷(卷绕)型结构中，长片型正电极和长片型负电极在分隔件被设置在该正电极和该负电极之间的状态下被卷绕；或者堆叠(层叠)型结构，在该堆叠(层叠)型结构中，均具有预定尺寸的多个正电极和负电极在分隔件被分别地设置在正电极和负电极之间的状态下被顺序地堆叠。近年来，为了解决由果冻卷型电极组件和堆叠型电极组件引起的问题，已经研制了一种堆叠/折叠型电极组件，该堆叠/折叠型电极组件是果冻卷型电极组件和堆叠型电极组件的组合，从而具有改进的结构，在该结构中，预定数目的正电极和负电极在分隔件被分别地设置在正电极和负电极之间的状态下被顺序地堆叠，以构成单元单体，在此之后，多个单元单体在已经被放置在隔膜上的状态下被顺序地折叠。
取决于使用目的，这些电极组件被安装在袋壳体、圆柱形罐、棱柱形壳体等中，以生产电池。
其中，圆柱形电池具有容易制造并且具有高的单位重量能量密度的优点，并且因此用作用于范围从便携式计算机到电动车辆的各种装置的能源。
图1是示出根据相关技术的圆柱形电池的截面示意图。
参考图1，圆柱形电池100通过如下方式来制造：将果冻卷型电极组件120接收在圆柱形壳体130中，将电解质注射到圆柱形壳体130中，并且将顶帽140联接到圆柱形壳体130的敞开的上端。
果冻卷型电极组件120具有如下结构，在该结构中，正电极121、负电极122和分隔件123被堆叠以被卷绕成圆状形状，并且圆柱形中心销150被插入电极组件120的中央部分中以作为卷绕芯。中心销150用于固定并支撑电极组件120，并且还用作通道以排放当电池被充电和放电以及工作时通过内部反应产生的气体。
由于传统圆柱形电池100被反复地充电和放电，所以电解质的氧化和分解反应被执行，从而存在以下问题：圆柱形电池100的寿命快速地缩短。然而，根据传统圆柱形电池100，在结构上，电解质既不能更换也不能添加。
发明内容
技术问题
本公开的目的在于提供一种能够通过添加电解质来延长圆柱形电池的寿命的圆柱形电池以及一种用于制造该圆柱形电池的方法。
然而，本公开的实施例所要解决的问题不限于上述问题，并且能够在本公开中所包括的技术思想的范围内进行各种扩展。
技术方案
根据本公开的实施例的圆柱形电池是电极组件被安装在金属罐中的圆柱形电池，其中，包括顶帽、安全通气阀和电流切断构件的帽组件可以位于电极组件的上端处，并且孔标记可以被形成在安全通气阀(safety vent)中。
顶帽可以包括排气孔。
开口可以被形成在电流切断构件中。
排气孔、孔标记和开口可以在与地面表面垂直且面对重力相反方向的假想直线上被定位成一行。
顶帽可以沿着安全通气阀的周边与安全通气阀形成接触。
孔标记可以被形成在安全通气阀的周边上。
孔标记可以被施加有通过排气孔肉眼可见的染料。
染料可以是荧光染料。
顶帽可以包括两个或更多排气孔。
圆柱形电池可以进一步包括与排气孔对应的两个或更多孔标记。
凹痕可以被形成在孔标记中。
染料可以被施加到凹痕。
一种用于通过将电解质添加到圆柱形电池来制造圆柱形电池的方法可以包括以下步骤：在孔标记中形成通孔；将电解质注射管插入通孔中；通过电解质注射管注射电解质；移除电解质注射管；以及密封通孔。
电解质注射管可以在相对于与地面表面垂直且面对重力相反方向的假想直线朝向圆柱形电池的外部以预定角度倾斜的同时穿过孔标记。
所述角度可以是五十度或者更小。
密封通孔的步骤可以包括通过激光焊接来密封通孔的步骤。
密封通孔的步骤可以包括用硅树脂来密封通孔的步骤。
有利效果
如上所述，根据本公开的实施例的圆柱形电池和用于制造该圆柱形电池的方法能够另外地注射电解质，由此延长圆柱形电池的寿命。
附图说明
图1是示出根据相关技术的圆柱形电池的截面示意图；
图2是示出根据本公开的实施例的圆柱形电池的截面示意图；
图3是示出图2的安全通气阀的示意图；
图4和图5是示出图2的电解质注射管穿过帽组件的状态的示意图；
图6是示出根据本公开的实施例的圆柱形电池的截面示意图；
图7是示出图6的帽组件的示意图；
图8是示出根据本公开的另一个实施例的圆柱形电池的截面示意图；并且
图9是示出根据本公开的另一个实施例的圆柱形电池的截面示意图。
具体实施方式
在下文中，将参考附图详细描述本公开的各种实施例，使得本领域技术人员能够容易地实施它们。本公开可以以各种不同的方式修改，并且不限于本文中所阐述的实施例。
此外，在整个说明书中，当一个部分被称作“包括”特定部件时，这意味着它能够进一步包括其它部件，而不排除其它部件，除非另有说明。
图2是示出根据本公开的实施例的圆柱形电池的截面示意图。
参考图2，圆柱形电池200能够被构造成使得果冻卷型电极组件240插入金属罐230的内部中，并且帽组件210安装在金属罐230的敞开的上端上。帽组件210可以包括顶帽211、安全通气阀212、电流切断构件213和衬垫215。
顶帽211可以具有如下结构，在该结构中，正电极端子被形成为突出到圆柱形电池200的外部并且排气孔214被冲孔。顶帽211可以沿着安全通气阀212的周边被电连接到安全通气阀212。
安全通气阀212可以具有形成在其中的预定凹痕222，以便由于圆柱形电池200的高压气体而爆裂。当圆柱形电池200正常工作时，安全通气阀212维持向下突出结构。然而，当在圆柱形电池200的内部中产生气体并且气体的内部压力增加时，安全通气阀212可以向上突出以爆裂，并且因此内部气体可以被排放。
当圆柱形电池200异常工作时，电流切断构件213可以中断电流以缓解内部压力。电流切断构件213可以被安装在电极组件240和安全通气阀212之间的空间上。在电流切断构件213中可以形成电解质注射管50穿过的开口217。
衬垫215可以被安装在顶帽211的外周表面上，以将用作正电极端子的顶帽211和用作负电极端子的金属罐230电绝缘。
图3是示出图2的安全通气阀的示意图。
参考图2和图3，电解质注射管50可以穿过的孔标记216可以被标记在安全通气阀212上。孔标记216的位置不受特别限制，但是可以被形成在与顶帽211形成接触的安全通气阀212的周边处。为了在孔标记216中形成电解质注射管50穿过的通孔，可以将预定压力施加到电解质注射管50以形成通孔。这里，安全通气阀212的结构由于压力而变形不是优选的。相应地，优选的是孔标记216被形成在与顶帽211形成接触的安全通气阀212的周边部分处，使得安全通气阀212不由于压力而变形。
图4和图5是示出图2的电解质注射管穿过帽组件的状态的示意图。
参考图4，类似注射针地成形的电解质注射管50可以穿过排气孔214并且然后穿过孔标记216和开口217。排气孔214、孔标记216和开口217可以在与地面表面垂直且面对重力相反方向的假想直线(图4的虚线箭头)上被定位成一行。通过该结构，电解质注射管50可以在与地面表面垂直且与重力相反的方向上穿过帽组件210。
参考图5，电解质注射管50可以在相对于与地面表面垂直且面对重力相反方向的假想直线(图4的虚线箭头)朝向圆柱形电池200的外部以预定角度(θ)倾斜的同时被插入。如果电解质注射管50具有穿过排气孔214、孔标记216和开口217的结构，则本公开不受特别限制，但是角度(θ)可以是五十度或者更小。当角度(θ)超过五十度时，因为电解质注射管50可能使安全通气阀212的结构变形，所以这不是优选的。然而，取决于安全通气阀212的结构，角度(θ)可以超过五十度。
当在孔标记216中形成电解质注射管50穿过的通孔时，可以通过挤压电解质注射管50来形成通孔，并且还可以通过使用单独的装置来形成通孔。
衬垫215可以被安装成包围顶帽211的周边，以将用作正电极端子的顶帽211和用作负电极端子的金属罐230电绝缘。
图6是示出根据本公开的另一个实施例的圆柱形电池的截面示意图。图7是示出图6的帽组件310的示意图。
参考图6和图7，圆柱形电池300可以包括其中形成有孔标记316的安全通气阀312。孔标记316可以被施加肉眼可见的染料。例如，孔标记316可以被施加荧光染料。
此外，施加到孔标记316的染料可以具有抗水性，由此防止了染料由于在圆柱形电池300的内部中产生的水分而被移除。此外，施加到孔标记316的染料可以具有耐热性，由此防止了染料由于在圆柱形电池300的内部中产生的热量而受到影响。
由于该结构，操作员可以通过排气孔314用肉眼辨识孔标记316的位置。
除了上述结构，圆柱形电池300具有与图2中示出的圆柱形电池200相同的结构，并且因此将省略其详细描述。
图8是示出根据本公开的另一个实施例的圆柱形电池的截面示意图。
参考图8，圆柱形电池400可以具有包括两个或更多电解质注射路径的结构。圆柱形电池400可以包括其中形成有两个或更多孔标记316的安全通气阀412。对应于两个或更多孔标记416的位置，顶帽411可以包括两个或更多排气孔414。此外，对应于两个或更多孔标记416的位置，电流切断构件413可以包括两个或更多开口417。
通过该结构，圆柱形电池400可以包括电解质注射管50可以穿过的两个或更多路径，并且操作员可以将电解质均匀地分散到电极组件440。
除了上述结构，圆柱形电池400具有与图2中示出的圆柱形电池200相同的结构，并且因此将省略其详细描述。
图9是示出根据本公开的另一个实施例的圆柱形电池的截面示意图。A示出形成在孔标记中的放大凹痕。
参考图9，圆柱形电池500可以包括其中形成有孔标记516的安全通气阀512。孔标记516可以包括凹痕526。凹痕526的形状不受特别限制，但是作为示例，凹痕526可以是具有矩形截面的结构。与安全通气阀512的其它部分相比较，孔标记516的形成有凹痕526的部分可以具有薄的厚度。
肉眼可见的染料可以被施加到安全通气阀512的形成有凹痕526的部分。
由于该结构，即使用相对小的压力，电解质注射管50也可以穿过孔标记516。
在根据本公开的圆柱形电池200、300、400和500中，当制造圆柱形电池时，可以通过孔标记216、316、416和516添加与所注射的电解质的10％到20％对应的电解质。
如果电解质被完全地添加，则形成在孔标记216、316、416和516中的通孔能够通过激光焊接或者用硅树脂被密封。
通过添加电解质，能够确认圆柱形电池200、300、400和500的寿命被延长了30％到35％。能够在根据电池的劣化而添加和/或移除特定部件的同时准备所添加的电解质。
基于以上公开，本领域普通技术人员将理解，能够在本公开的范围内做出各种应用和修改。

Claims (14)

1.一种圆柱形电池，在所述圆柱形电池中，电极组件被安装在金属罐中，
其中，帽组件位于所述电极组件的上端处，所述帽组件包括顶帽、安全通气阀和电流切断构件，
孔标记被形成在所述安全通气阀中，
所述顶帽包括排气孔，
开口被形成在所述电流切断构件中，并且
所述排气孔、所述孔标记和所述开口在与地面表面垂直且面对重力相反方向的假想直线上被定位成一行，
其中，为了对所述圆柱形电池进行电解质添加，在所述孔标记中形成通孔；将电解质注射管插入所述通孔中；通过所述电解质注射管注射电解质；移除所述电解质注射管；并且密封所述通孔。
2.根据权利要求1所述的圆柱形电池，其中，所述顶帽沿着所述安全通气阀的周边与所述安全通气阀形成接触。
3.根据权利要求2所述的圆柱形电池，其中，所述孔标记被形成在所述安全通气阀的所述周边上。
4.根据权利要求1所述的圆柱形电池，其中，所述孔标记被施加有通过所述排气孔肉眼可见的染料。
5.根据权利要求4所述的圆柱形电池，其中，所述染料是荧光染料。
6.根据权利要求1所述的圆柱形电池，其中，所述顶帽包括两个或更多排气孔。
7.根据权利要求6所述的圆柱形电池，进一步包括：
与所述排气孔对应的两个或更多孔标记。
8.根据权利要求1所述的圆柱形电池，其中，凹痕被形成在所述孔标记中。
9.根据权利要求8所述的圆柱形电池，其中，染料被施加到所述凹痕。
10.一种用于对根据权利要求1所述的圆柱形电池进行电解质添加的方法，所述方法包括以下步骤：
在所述孔标记中形成通孔；
将电解质注射管插入所述通孔中；
通过所述电解质注射管注射电解质；
移除所述电解质注射管；以及
密封所述通孔。
11.根据权利要求10所述的方法，其中，所述电解质注射管在相对于与地面表面垂直且面对重力相反方向的假想直线朝向所述圆柱形电池的外部以预定角度倾斜的同时穿过所述孔标记。
12.根据权利要求11所述的方法，其中，所述角度是五十度或者更小。
13.根据权利要求10所述的方法，其中，密封所述通孔的步骤包括通过激光焊接来密封所述通孔的步骤。
14.根据权利要求10所述的方法，其中，密封所述通孔的步骤包括用硅树脂来密封所述通孔的步骤。
CN202080036207.8A 2019-07-17 2020-07-17 圆柱形电池及其制造方法 Active CN113826257B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020190086460A KR20210009654A (ko) 2019-07-17 2019-07-17 원통형 전지 및 원통형 전지 제조 방법
KR10-2019-0086460 2019-07-17
PCT/KR2020/009459 WO2021010792A1 (ko) 2019-07-17 2020-07-17 원통형 전지 및 원통형 전지 제조 방법

Publications (2)

Publication Number Publication Date
CN113826257A CN113826257A (zh) 2021-12-21
CN113826257B true CN113826257B (zh) 2024-08-06

Family

ID=74211149

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080036207.8A Active CN113826257B (zh) 2019-07-17 2020-07-17 圆柱形电池及其制造方法

Country Status (6)

Country Link
US (1) US12113235B2 (zh)
EP (1) EP3958340A4 (zh)
JP (1) JP7239242B2 (zh)
KR (1) KR20210009654A (zh)
CN (1) CN113826257B (zh)
WO (1) WO2021010792A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022121989A1 (de) 2022-08-31 2024-02-29 Bayerische Motoren Werke Aktiengesellschaft Deckelbaugruppe, energiespeicherzelle, batteriemodul und verfahren zur herstellung einer deckelbaugruppe
SE545630C2 (en) * 2022-12-22 2023-11-14 Northvolt Ab A controlled ventilating terminal part for a cylindrical secondary cell

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990049247A (ko) * 1997-12-12 1999-07-05 홍건희 리튬이온 이차전지의 안전장치
KR20070067779A (ko) * 2005-12-23 2007-06-29 삼성에스디아이 주식회사 리튬 이차전지 및 그 제조방법

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000030733A (ja) 1998-07-14 2000-01-28 Aiwa Co Ltd 蓄電池
TW551619U (en) * 2002-10-16 2003-09-01 Delta Electronics Inc Chargeable battery capable of refilling electrolyte and safety valve thereof
KR100696777B1 (ko) * 2005-04-08 2007-03-19 삼성에스디아이 주식회사 리튬 이온 이차 전지
KR100824896B1 (ko) * 2005-12-29 2008-04-23 삼성에스디아이 주식회사 원통형 리튬 이차전지
KR20080037862A (ko) * 2006-10-27 2008-05-02 삼성에스디아이 주식회사 이차전지
JP5024615B2 (ja) 2007-10-12 2012-09-12 トヨタ自動車株式会社 密閉型電池
KR101372477B1 (ko) * 2008-03-06 2014-03-11 삼성에스디아이 주식회사 캡 조립체 및 이를 구비하는 이차 전지
KR101075343B1 (ko) 2009-09-01 2011-10-19 삼성에스디아이 주식회사 이차전지
JP2013140672A (ja) 2010-03-26 2013-07-18 Hitachi Maxell Energy Ltd 密閉型電池
KR101201808B1 (ko) 2010-06-03 2012-11-15 삼성에스디아이 주식회사 이차 전지 및 이차 전지의 전해액 주입 방법
US8501333B2 (en) * 2010-10-21 2013-08-06 Lg Chem, Ltd. Cap assembly and secondary battery using the same
KR20150029532A (ko) 2013-09-09 2015-03-18 정윤이 배터리 모듈
KR102145492B1 (ko) 2016-06-14 2020-08-18 주식회사 엘지화학 수명 특성이 향상된 전지시스템 및 전지시스템의 가동 방법
KR102261711B1 (ko) 2016-07-21 2021-06-08 주식회사 엘지에너지솔루션 전해액 주입구를 포함하는 원통형 전지

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990049247A (ko) * 1997-12-12 1999-07-05 홍건희 리튬이온 이차전지의 안전장치
KR20070067779A (ko) * 2005-12-23 2007-06-29 삼성에스디아이 주식회사 리튬 이차전지 및 그 제조방법

Also Published As

Publication number Publication date
US20220223971A1 (en) 2022-07-14
JP7239242B2 (ja) 2023-03-14
CN113826257A (zh) 2021-12-21
KR20210009654A (ko) 2021-01-27
EP3958340A4 (en) 2022-07-06
EP3958340A1 (en) 2022-02-23
JP2022540538A (ja) 2022-09-16
US12113235B2 (en) 2024-10-08
WO2021010792A1 (ko) 2021-01-21

Similar Documents

Publication Publication Date Title
CN101578722B (zh) 二次电池及其制造方法
CN113826257B (zh) 圆柱形电池及其制造方法
KR20080016047A (ko) 이차 전지
KR20150032971A (ko) 단차가 형성된 젤리-롤형 전극조립체를 포함하는 전지셀
KR20160108857A (ko) 복수의 양극 탭들과 음극 탭들을 포함하는 원통형 이차전지
JP7551999B2 (ja) 二次電池およびこれを含むデバイス
KR20080009462A (ko) 캡조립체 및 이를 이용한 이차 전지
KR101002498B1 (ko) 전극조립체 및 이를 포함하는 이차전지
KR101723035B1 (ko) 가스 센서를 포함하는 전지셀
JPH11154500A (ja) 非水電解質二次電池
CN112687913A (zh) 锂空气电池包
KR100522819B1 (ko) 리튬 이온 2차 전지
CN113994537A (zh) 圆柱形电池
JP7551979B2 (ja) ボタン型二次電池
KR101264461B1 (ko) 캡조립체와 이를 이용하는 이차 전지 및 캡조립체 조립방법
US20230147539A1 (en) Cylindrical Battery and Method for Manufacturing the Same
CN102340019A (zh) 电池用封口板及具有该封口板的电池
KR20220139619A (ko) 이차전지 및 이의 제조 방법
CN201789004U (zh) 电池用封口板及具有该封口板的电池
JP2005085674A (ja) 非水電解質二次電池
KR101684359B1 (ko) 수직 적층 구조의 전지셀
CN101789500B (zh) 电池用引线、电池用封口板及电池
US20240372177A1 (en) Button-type secondary battery
KR100655636B1 (ko) 자동 절단부의 양극 리드를 포함하고 있는 이차전지
US20220344750A1 (en) Cylindrical battery and method for manufacturing the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant