US 11,705,556 B2
Positive electrode current collector and positive electrode plate, battery, battery module, battery pack, and apparatus containing such positive electrode current collector
Xin Liu, Ningde (CN); Qisen Huang, Ningde (CN); Mingling Li, Ningde (CN); Xianghui Liu, Ningde (CN); Cheng Li, Ningde (CN); Jia Peng, Ningde (CN); and Chengdu Liang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed on Nov. 16, 2022, as Appl. No. 18/56,248.
Application 18/056,248 is a continuation of application No. PCT/CN2020/112691, filed on Aug. 31, 2020.
Prior Publication US 2023/0083168 A1, Mar. 16, 2023
Int. Cl. H01M 4/66 (2006.01); H01M 4/04 (2006.01); H01M 50/46 (2021.01); H01M 4/02 (2006.01)
CPC H01M 4/667 (2013.01) [H01M 4/0404 (2013.01); H01M 50/46 (2021.01); H01M 2004/028 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A positive electrode current collector, comprising an organic support layer and an aluminum-based conductive layer disposed on at least one surface of the organic support layer, wherein the aluminum-based conductive layer contains aluminum (Al) and at least one modifying element selected from the group consisting of oxygen (O), nitrogen (N), fluorine (F), boron (B), sulfur (S), and phosphorus (P), wherein an X-ray photoelectron spectroscopy (XPS) spectrogram of the aluminum-based conductive layer with a surface passivation layer removed through etching has at least a first peak in a range of 70 eV to 73.5 eV and a second peak in a range of 73.5 eV to 78 eV, wherein a ratio x of peak intensity of the second peak to that of the first peak satisfies 0<x≤3.0.