US 12,463,222 B2
Secondary battery and electrode plate
Zige Zhang, Ningde (CN); Wei Li, Ningde (CN); Jing Li, Ningde (CN); Qingrui Xue, Ningde (CN); Miao Jiang, Ningde (CN); Yuqian Wen, Ningde (CN); and Long Wang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Nov. 23, 2023, as Appl. No. 18/518,597.
Application 18/518,597 is a division of application No. 16/233,296, filed on Dec. 27, 2018, abandoned.
Claims priority of application No. 201810768859 (CN), filed on Jul. 13, 2018.
Prior Publication US 2024/0088395 A1, Mar. 14, 2024
Int. Cl. H01M 4/64 (2006.01); H01M 4/66 (2006.01); H01M 10/04 (2006.01); H01M 50/533 (2021.01); H01M 4/02 (2006.01); H01M 50/538 (2021.01)
CPC H01M 4/64 (2013.01) [H01M 4/667 (2013.01); H01M 4/668 (2013.01); H01M 10/04 (2013.01); H01M 50/533 (2021.01); H01M 2004/021 (2013.01); H01M 50/538 (2021.01)] 20 Claims
OG exemplary drawing
 
1. An electrode plate for a secondary battery, comprising:
an active material layer including a first active material sub-layer and a second active material sub-layer;
a current collector partially sandwiched between the first active material sub-layer and the second active material sub-layer, the current collector comprising:
an insulating layer;
a first conductive layer between the first active material sub-layer and the insulating layer; and
a second conductive layer between the insulating layer and the second active material sub-layer; and
a conductive structure comprising:
a first conductive member comprising:
a first section arranged along a side of the first conductive layer; and
a second section extending from the first section and beyond the current collector in a direction away from the active material layer; and
a second conductive member comprising:
a first connecting section connected to the second conductive layer;
a bent section connected to the first connecting section and bent towards the first conductive member relative to the first connecting section; and
a second connecting section bent backward relative to the bent section to be sandwiched between the first section of the first conductive member and the first conductive layer;
wherein:
a sum of a thickness of the first section of the first conductive member and a thickness of the second connecting section of the second conductive member is smaller than a thickness of the first active material sub-layer; and
both the first section of the first conductive member and the second connecting section of the second conductive member do not touch the active material layer.