Title:
CAPACITY-INCREASING BIPOLAR STORAGE BATTERY STACK
Document Type and Number:
WIPO Patent Application WO/2022/257297
Kind Code:
A1
Abstract:
Disclosed is a capacity-increasing bipolar storage battery stack, comprising a plurality of groups of bipolar electrode plates, a polar cover and a fixing mechanism, wherein each group of bipolar electrode plates comprises an insulating substrate and a positive electrode plate chain and a negative electrode plate chain which are located on two sides of the insulating substrate, and the positive electrode plate chain and the negative electrode plate chain on the same group of bipolar electrode plates are conductively connected by means of a flow guide member passing through the insulating substrate; the positive electrode plate chain comprises a plurality of single positive electrode plates and a positive connecting belt, the negative electrode plate chain comprises a plurality of single negative electrode plates and a negative connecting belt, the single positive and negative electrode plates between the positive electrode plate chains and the negative electrode plate chains on sides in contact with each other between two adjacent groups of bipolar electrode plates are alternately stacked, and a partition plate is provided between the single positive electrode plate and the single negative electrode plate; the insulating substrate protrudes from the positive electrode plate chain and the negative electrode plate chain in a direction perpendicular to an arrangement direction of the bipolar electrode plate, and a sealing ring provided with a liquid injection hole is provided between two adjacent groups of insulating substrates; a positive electrode terminal and a negative electrode terminal which pass through the polar cover are respectively provided on the positive electrode plate chain and the negative electrode plate chain which are located at the head and the tail; and the fixing mechanism is used for clamping and fixing each group of bipolar electrode plates between two polar covers.
Inventors:
LIU ZHUO (CN)
ZHANG TIANREN (CN)
CAO LONGQUAN (CN)
WANG CHAO (CN)
TANG XUFENG (CN)
QIU HUALIANG (CN)
LIU HONGJIE (CN)
CHEN CAIFENG (CN)
HUANG XIAO (CN)
CHEN YUEWU (CN)
YU ZHIPING (CN)
ZHANG TIANREN (CN)
CAO LONGQUAN (CN)
WANG CHAO (CN)
TANG XUFENG (CN)
QIU HUALIANG (CN)
LIU HONGJIE (CN)
CHEN CAIFENG (CN)
HUANG XIAO (CN)
CHEN YUEWU (CN)
YU ZHIPING (CN)
Application Number:
PCT/CN2021/119240
Publication Date:
December 15, 2022
Filing Date:
September 18, 2021
Export Citation:
Assignee:
TIANNENG BATTERY GROUP CO LTD (CN)
International Classes:
H01M10/04
Domestic Patent References:
| WO2021022954A1 | 2021-02-11 |
Foreign References:
| CN108666636A | 2018-10-16 | |||
| CN109004291A | 2018-12-14 | |||
| CN103151566A | 2013-06-12 |
Attorney, Agent or Firm:
HANGZHOU TIANQIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: