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1. WO2023283807 - BATTERY CELL, BATTERY, AND POWER-CONSUMING DEVICE

Publication Number WO/2023/283807
Publication Date 19.01.2023
International Application No. PCT/CN2021/106110
International Filing Date 13.07.2021
IPC
H01M 50/242 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
233characterised by physical properties of casings or racks, e.g. dimensions
242adapted for protecting batteries against vibrations, collision impact or swelling
H01M 50/244 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
244Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
Applicants
  • 宁德时代新能源科技股份有限公司 CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED [CN]/[CN]
Inventors
  • 何建福 HE, Jianfu
  • 叶永煌 YE, Yonghuang
  • 刘倩 LIU, Qian
  • 孙婧轩 SUN, Jingxuan
  • 徐晓富 XU, Xiaofu
  • 孙雪阳 SUN, Xueyang
  • 金海族 JIN, Haizu
Priority Data
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BATTERY CELL, BATTERY, AND POWER-CONSUMING DEVICE
(FR) ÉLÉMENT DE BATTERIE, BATTERIE ET DISPOSITIF CONSOMMATEUR D’ÉNERGIE
(ZH) 电池单体、电池及用电装置
Abstract
(EN) The present application discloses a battery cell (1000), the battery cell (1000) comprising a housing (100), at least one cell core (200), and a buffer member (300); the at least one cell core (200) is accommodated in the housing (100); the buffer member (300) is disposed corresponding to a side wall of a cell core (100), the buffer member (300) has an accommodating cavity (305), the outer periphery of the accommodating cavity (305) comprises at least one encapsulation structure (3010), and the encapsulation structure (3010) comprises at least one encapsulation region having a predetermined length; when the pressure in the accommodating cavity (305) exceeds the encapsulation strength of the encapsulation structure (3010), the encapsulation region opens and forms a buffer space communicated with the accommodating cavity (305), thereby reducing the effects of cell core expansion.
(FR) La présente demande divulgue un élément de batterie (1000) comprenant un boîtier (100), au moins un cœur d'élément (200) et un organe tampon (300) ; ledit cœur d'élément (200) est logé dans le boîtier (100) ; l'organe tampon (300) est disposé en correspondance avec une paroi latérale d'un cœur d'élément (100), l'organe tampon (300) présente une cavité de logement (305), la périphérie externe de la cavité de logement (305) comprend au moins une structure d'encapsulation (3010), et la structure d'encapsulation (3010) comprend au moins une zone d'encapsulation de longueur prédéterminée. Lorsque la pression dans la cavité de logement (305) dépasse la résistance à l'encapsulation de la structure d'encapsulation (3010), la zone d'encapsulation s'ouvre et forme un espace tampon en communication avec la cavité de logement (305), ce qui permet de réduire les effets d'expansion de cœurs d'élément.
(ZH) 本申请公开了一种电池单体(1000),电池单体(1000)包括壳体(100)、至少一个电芯(200)和缓冲件(300),至少一个电芯(200)容纳于所述壳体(100)内;缓冲件(300)与所述电芯(100)的侧壁对应设置,所述缓冲件(300)具有容纳腔(305),所述容纳腔(305)的外周包括至少一个封装结构(3010),所述封装结构(3010)包括至少一级具有预定长度的封装区域,当所述容纳腔(305)内的压力超过所述封装结构(3010)的封装强度时,所述封装区域打开并形成与所述容纳腔(305)连通的缓冲空间,减小了电芯膨胀带来的影响。
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