US 12,148,932 B2
Electrode plate, electrochemical apparatus, battery module, battery pack, and device
Jing Li, Ningde (CN); Qingrui Xue, Ningde (CN); Zige Zhang, Ningde (CN); Wei Li, Ningde (CN); and Xianwei Yang, 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 Dec. 24, 2020, as Appl. No. 17/134,014.
Application 17/134,014 is a continuation of application No. PCT/CN2019/117143, filed on Nov. 11, 2019.
Claims priority of application No. 201811638645.2 (CN), filed on Dec. 29, 2018.
Prior Publication US 2021/0119221 A1, Apr. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/66 (2006.01); H01M 4/13 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/667 (2013.01) [H01M 4/13 (2013.01); H01M 4/661 (2013.01); H01M 4/663 (2013.01); H01M 4/668 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrode plate, comprising:
a current collector comprising:
a support layer; and
at least one conductive layer arranged on at least one surface of the support layer;
a conductive primer layer arranged on the at least one conductive layer and away from the support layer, the conductive primer layer comprising a conductive material and a bonding agent;
at least one protection layer made of a metal or a metal oxide, the at least one-protection layer further comprising at least one lower protection layer disposed between the at least one conductive layer and the support layer and at least one upper protection layer disposed between the at least one conductive layer and the conductive primer layer; and
an electrode active material layer disposed on the conductive primer layer,
wherein each one of the at least one conductive layer has a thickness D2 in a range of 30 nm≤D2≤3 μm.