WO2019114775A1 - 电池盖板组件、单体电池、电池模组、动力电池及电动汽车 - Google Patents
电池盖板组件、单体电池、电池模组、动力电池及电动汽车 Download PDFInfo
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- WO2019114775A1 WO2019114775A1 PCT/CN2018/120766 CN2018120766W WO2019114775A1 WO 2019114775 A1 WO2019114775 A1 WO 2019114775A1 CN 2018120766 W CN2018120766 W CN 2018120766W WO 2019114775 A1 WO2019114775 A1 WO 2019114775A1
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- battery
- cover assembly
- battery cover
- region
- assembly according
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- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000007373 indentation Methods 0.000 claims description 8
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 238000005476 soldering Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
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- 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
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
- H01M50/20—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
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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- H01M50/543—Terminals
-
- 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
- H01M2200/00—Safety devices for primary or secondary batteries
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
Definitions
- the voltage and current of the battery are monitored, and the battery power is calculated by the current integration method and the open circuit voltage method, thereby controlling the charge and discharge of the battery.
- the battery voltage sampling or current sampling failure, or software failure resulting in the battery not being controlled for a long time, especially in the case of charging with a charging post, when the charging pile fails to communicate with the battery manager, Charge can not be controlled, the battery overcharge to a certain extent, will cause the battery to rise or even explode.
- the present disclosure also proposes a single battery having the above battery cover assembly.
- the present disclosure also proposes a power battery having the above battery module.
- a battery cover assembly includes a cover plate, an electrode inner terminal located inside the cover plate, and an electrode outer terminal located outside the cover plate, the electrode inner terminal and the electrode outer terminal being interrupted by a current
- the device is electrically connected, the current interrupting device includes a scoring member for electrically connecting with the scoring member, and the flip member is capable of acting under the action of air pressure to break the scoring member
- the upper indentation is formed as an elongated structure extending along the length of the cover.
- the overturning member into an elongated structure extending in the longitudinal direction of the cover plate, it is possible to reduce the exposure of the current interrupting device including the inverted member while securing the contact area with the internal gas.
- the portion of the cover plate may extend beyond the cover plate in the width direction, and may even be completely within the range of the cover plate, thereby avoiding interference with other devices other than the cover plate, and the flipping sensitivity is ensured.
- the elongated structure has a circular arc shape at an end portion in the longitudinal direction.
- the elongate structure is a waist structure or an elliptical structure.
- the thicknesses of the first connection region and the second connection region are respectively greater than the thickness of the action region therebetween.
- the first connection region and the second connection region have a thickness of 0.3 to 3 mm, and the action region has a thickness of 0.05 to 0.3 mm.
- the deformation buffer is formed as an annular groove structure surrounding the first connection region.
- the annular groove structure has a radial cross section that is curved or angular.
- the score member is formed as an elongated structure that extends along the length of the cover plate.
- the indentation member includes a scored region formed with the score, a first weld zone for electrically interconnecting the flip member, and a second electrical connection for electrically connecting the terminal within the electrode a weld zone, the score is disposed around the first weld zone, and at least one of the first weld zone and the second weld zone is disposed opposite the score.
- the score is disposed opposite the first weld zone and the second weld zone.
- the indentation member includes a scored area and a boss protruding from the scored area, the first land is formed on the boss, and the score is formed in the On the scored area and around the boss.
- the first land is formed by the upper surface of the boss and parallel to the score region, and an outer circumference of the upper surface is provided with a ring-shaped solder joint.
- an outer circumference of the score region is formed with a ring wall that protrudes in the same direction as the boss, and the second land is formed on an outer circumference of the ring wall and is The upper edges of the bosses are aligned in the height direction.
- the second weld zone, the score zone, the first weld zone is arranged radially from the outside to the inside, and is formed from the outside to the inside to gradually approach the step structure of the flip member.
- the score is disposed around the first weld zone, and the score zone, the first weld zone, and the second weld zone are parallel to each other and are respectively formed into an elongated structure.
- an outer circumference of the score region is formed with a ring wall that is convexly convex with the boss, and the second land is formed at an outer circumference of the ring wall and is The score regions are parallel, and the outer periphery of the second weld zone is formed with a ring-shaped solder joint.
- the side walls of the boss and the ring wall are perpendicular to the scored area, respectively.
- the electric vehicle is provided with the power battery provided by the present disclosure.
- the overturning member is formed as an elongated structure extending along the longitudinal direction of the cover plate, that is, the dimension along the cover plate is larger than the dimension in other directions, the contact area with the internal gas can be ensured. Reducing the possibility that the portion of the current interrupting device including the inverting member to expose the cover plate extends beyond the cover plate in the width direction, even completely within the range of the cover plate, thereby avoiding interference with other devices other than the cover plate, and the flip sensitivity is ensured .
- FIG. 7 is a partial perspective structural view of a flip member of a current interrupting device according to a third embodiment of the present disclosure.
- the current interrupting devices in the respective embodiments are all mechanical structures that induce air pressure.
- the current interrupting devices are in gas communication with the inside of the casing of the unit cell 200 and are capable of acting to interrupt the flow of current under air pressure.
- the transfer of current can be interrupted by disconnecting the internal components, thereby cutting off the charge and discharge of the battery in time.
- the source of the air pressure used is: when the battery is in a dangerous state such as overcharging, the gas inside the battery generates gas, which causes the air pressure inside the outer casing to rise, or the battery temperature rises when the battery is abnormal during use, so that the battery interior The air pressure rises, thereby generating the pneumatic power that drives the current interrupting device.
- the present disclosure provides a scoring member for a current interrupting device, the scoring member 101 including a scored region 105 formed with a score 104 for electrically interconnecting the flip member 102. a first land 103, and a second land 107 for electrically connecting to the electrode internal terminal 109, the flip member 102 is capable of acting under the action of air pressure to electrically disconnect the scoring member 101 by breaking the score 104, After the flip member 102 breaks the score 104, the flip member 102 is electrically disconnected from the second land 107, thereby being electrically disconnected from the electrode terminal 109.
- the score 104 surrounds the first land.
- the score 104 may be an annular shape surrounding the first weld zone 103 and disposed at least one of the first weld zone 103 and the second weld zone 107 and the score 104. That is, the plane in which the score 104 is located and the first land 103 and/or the second land 107 are not in one plane, so that the mechanical force of the external force transmitted by the flip member 102 on the score 104 on the score member 101 can be effectively eliminated.
- the impact, and also the thermal influence of the welding stress of the first land 103 and the second land 107 on the region where the score 104 is located can also be eliminated. Thereby the reliability of the current interrupting device provided by the present disclosure is improved.
- the score 104 around the first land 103 can be broken under the action of the internal pressure of the battery, and the electrical connection between the flip member 102 and the score member 101 is broken as a whole to interrupt the current.
- the score member 101 includes a scored area 105 and a boss 106 projecting from the scored area 105, the first land 103 being formed on the boss 106
- the score 104 is formed on the scored area 105 and disposed around the boss 106.
- the first land 103 is formed by the upper surface of the boss 106 and is parallel to the scored region 105, and the outer periphery of the upper surface is provided with a ring-shaped solder joint.
- the first connection region 115 on the flip member 102 may be formed to receive the connection hole of the boss 106.
- the side walls of the boss and the ring wall 108 are perpendicular to the scored area 105, respectively, and may be angled in other embodiments, for example, forming a zigzag type step.
- the first lands 103, the nicks 105, and the second lands 107 may each have an annular structure, that is, the first lands 103 have a central hole. In other embodiments, the first lands 103 may not have Center hole.
- the scoring member 101 of the two embodiments has been described above, and the flip member 102 of the two embodiments will be described below.
- the inverting member 102 is a sheet-like structure forming a taper shape, the small end of the taper being formed as a first connecting region 115, the large end being away from the scoring member 101 and being formed as a second connecting region 116.
- the tapered structure can dispose the two connecting regions differently and can provide a space for the flip member 102 to be turned upside down to break the score 104.
- the flip member may also be a flat member having elasticity or the like.
- the boss 106 of the score member 101 protrudes from the receiving groove of the electrode terminal terminal 109.
- the end portion of the elongated structure in the longitudinal direction has a circular arc shape, that is, the cross section parallel to the cover plate has a middle rectangle and two ends.
- the curved structure that is, the structure has no corners, so as to facilitate the formation of the annular flip member 102 and other corresponding structures, such as the scoring member 101, the support ring 113 and the electrode outer terminal, which are matched with the structure of the cover plate 110. 112.
- the elongate structure may also be a waist or elliptical structure with the long axis of the waist or elliptical cross section being in the direction of the cover.
- the parallel of the elongate structure and the cross section of the cover plate may also be formed into other shapes such as a rectangular cross section.
- the flip member 102 is formed into a tapered sheet-like structure in a direction perpendicular to the upper surface of the cap plate 110, and the tapered small end is formed.
- the first connection region 115 is formed in an elongated structure, the large end being away from the indentation member 101 and the second connection region 116 formed is parallel to the first connection region 115 and formed into an elongated structure.
- the second connection region 116 is a flanged structure to facilitate simultaneous connection with the support ring 113 and the electrode outer terminal 112.
- the unit battery 200 provided by the present disclosure includes a housing 111, a battery core housed in the housing, and the above-described battery cover assembly 100 of the package housing 111.
- the electrode inner terminal 109 is electrically connected to the battery core.
- the flip member 102 is in gas communication with the interior of the outer casing.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
Claims (25)
- 一种电池盖板组件,其特征在于,包括盖板、位于该盖板内侧的电极内端子和位于该盖板外侧的电极外端子,所述电极内端子和所述电极外端子通过电流中断装置电连接,所述电流中断装置包括刻痕件和翻转件,所述翻转件用于与刻痕件相互电连接,并且所述翻转件能够在气压作用下动作以拉断所述刻痕件上的刻痕,所述翻转件形成为沿所述盖板长度方向延伸的长形结构。
- 根据权利要求1所述的电池盖板组件,其特征在于,所述长形结构沿长度方向的端部为圆弧形。
- 根据权利要求1所述的电池盖板组件,其特征在于,所述长形结构为腰型结构或椭圆结构。
- 根据权利要求1-3中任一项所述的电池盖板组件,其特征在于,所述翻转件上形成有用于与所述刻痕件电连接的第一连接区和用于与电池的电极外端子电连接的第二连接区,至少所述第二连接区形成为长形结构。
- 根据权利要求4所述的电池盖板组件,其特征在于,所述翻转件沿垂直于所述盖板上表面的方向为形成锥形的片状结构,该锥形的小端形成为所述第一连接区并形成为长形结构,大端远离所述刻痕件形成为所述第二连接区与所述第一连接区平行并形成为长形结构。
- 根据权利要求3所述的电池盖板组件,其特征在于,所述第一连接区和第二连接区的厚度分别大于二者之间的动作区域的厚度。
- 根据权利要求6所述的电池盖板组件,其特征在于,所述第一连接区和第二连接区的厚度为0.3-3mm,所述动作区域的厚度为0.05-0.3mm。
- 根据权利要求1-7中任一项所述的电池盖板组件,其特征在于,所述翻转件上还形成有变形缓冲区,所述变形缓冲区设置在所述第一连接区和所述第二连接区之间,并且围绕所述第一连接区设置。
- 根据权利要求8所述的电池盖板组件,其特征在于,所述变形缓冲区形成为围绕所述第一连接区的环形槽结构。
- 根据权利要求9所述的电池盖板组件,其特征在于,所述环形槽结构的径向截面为弧形或角型。
- 根据权利要求1-10中任一项所述的电池盖板组件,其特征在于,所述刻痕件形成为沿所述盖板长度方向延伸的长形结构。
- 根据权利要求1-11中任一项所述的电池盖板组件,其特征在于,所述刻痕件包括形成有所述刻痕的刻痕区、用于与翻转件相互电连接的第一焊接区以及用于与电极内端子电连接的第二焊接区,所述刻痕围绕所述第一焊接区设置,并且所述第一焊接区、第二焊接区中的至少一个与所述刻痕异面设置。
- 根据权利要求12所述的电池盖板组件,其特征在于,所述刻痕与第一焊接区和第二焊接区异面设置。
- 根据权利要求13所述的电池盖板组件,其特征在于,所述刻痕件包括从该刻痕区凸出的凸台,所述第一焊接区形成在所述凸台上,所述刻痕形成在所述刻痕区上并且围绕所述凸台设置。
- 根据权利要求14所述的电池盖板组件,其特征在于,所述第一焊接区由所述凸台上表面形成并与所述刻痕区平行,并且该上表面的外周缘设置有环形焊点。
- 根据权利要求15所述的电池盖板组件,其特征在于,所述刻痕区的外周缘形成有与所述凸台同向凸出的环壁,所述第二焊接区形成在所述环壁的外周缘并与所述凸台的上边缘在高度方向上对齐。
- 根据权利要求16所述的电池盖板组件,其特征在于,所述第二焊接区、所述刻痕区所述第一焊接区沿径向从外向内依次布置,并且从外向内形成为逐渐接近所述翻转件的台阶结构,所述刻痕围绕所述第一焊接区设置,所述刻痕区、第一焊接区和第二焊接区相互平行并分别形成为长形结构。
- 根据权利要求17所述的电池盖板组件,其特征在于,所述刻痕区的外周缘形成有与所述凸台反向凸出的环壁,所述第二焊接区形成在所述环壁的外周缘并与所述刻痕区平行,所述第二焊接区的外周缘形成有环形焊点。
- 根据权利要求18所述的电池盖板组件,其特征在于,所述凸台的侧壁和所述环壁分别与所述刻痕区垂直。
- 根据权利要求1-19中任一项所述的电池盖板组件,其特征在于,所述电极外端子与所述翻转件电连接,所述刻痕件电连接在所述电极内端子上,所述翻转件的外周缘下侧与所述盖板之间密封连接有支撑环,所述电极外端子的外周缘电连接在所述翻转件的外周缘上侧,所述支撑环和所述电极外端子分别形成为长形结构。
- 根据权利要求19所述的电池盖板组件,其特征在于,所述支撑环不伸出所述盖板的边缘。
- 一种单体电池,该单体电池包括外壳、容纳在外壳内的电芯、以及封装所述外壳的电池盖板组件,其特征在于,所述电池盖板组件为根据权利要求1-21中任意一项 所述的电池盖板组件,所述电极内端子与所述电芯电连接,并且所述翻转件与所述外壳的内部气体连通。
- 一种电池模组,其特征在于,该电池模组内设置有根据权利要求22所述的单体电池。
- 一种动力电池,包括包体和设置在该包体内的电池模组,其特征在于,所述电池模组为根据权利要求23所述的电池模组。
- 一种电动汽车,其特征在于,该电动汽车设置有根据权利要求24所述的动力电池。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1020207020254A KR20200097328A (ko) | 2017-12-13 | 2018-12-13 | 배터리 커버 플레이트 어셈블리, 싱글 셀, 배터리 모듈, 파워 배터리 및 전기 자동차 |
EP18887235.2A EP3726618A4 (en) | 2017-12-13 | 2018-12-13 | BATTERY COVER PLATE ASSEMBLY, SINGLE CELL BATTERY, BATTERY MODULE, POWER BATTERY AND ELECTRIC VEHICLE |
JP2020532771A JP2021507457A (ja) | 2017-12-13 | 2018-12-13 | 電池カバープレートアセンブリ、単電池、電池モジュール、動力電池及び電気自動車 |
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EP (1) | EP3726618A4 (zh) |
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CN113540666A (zh) * | 2021-06-01 | 2021-10-22 | 安徽五行动力新能源有限公司 | 可调节尺寸的锂电池拆卸防护结构及使用方法 |
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US11394092B1 (en) | 2021-05-13 | 2022-07-19 | Beta Air, Llc | Crash safe battery pack for mediating risks of electrical short circuits during impact |
CN113725532B (zh) * | 2021-08-25 | 2023-09-05 | 远景动力技术(江苏)有限公司 | 电池盖板、电池及电池的加工方法 |
CN116438702A (zh) * | 2021-08-31 | 2023-07-14 | 宁德时代新能源科技股份有限公司 | 泄压装置、电池单体、电池及用电设备 |
WO2024055177A1 (en) * | 2022-09-14 | 2024-03-21 | Techtronic Cordless Gp | Battery cell with integrated overcurrent protection member |
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Publication number | Publication date |
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EP3726618A4 (en) | 2020-12-23 |
US20200328399A1 (en) | 2020-10-15 |
CN109920963B (zh) | 2024-10-15 |
EP3726618A1 (en) | 2020-10-21 |
CN109920963A (zh) | 2019-06-21 |
JP2021507457A (ja) | 2021-02-22 |
KR20200097328A (ko) | 2020-08-18 |
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