The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2024
Filed:
Jan. 04, 2023
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Quanguo Li, Ningde, CN;
Yonghuang Ye, Ningde, CN;
Chengdu Liang, Ningde, CN;
Haizu Jin, Ningde, CN;
Qian Liu, Ningde, CN;
Fajun Huang, Ningde, CN;
Xiaofu Xu, Ningde, CN;
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Abstract
A battery module, a battery pack, and an electric apparatus are provided. In some embodiments, the battery module includes a first type of cell and a second type of cell that are cells of different chemical systems, where the first type of cell includes n first cells, the second type of cell includes m second cells, n and m each are selected from an integer greater than 1, at least one of the first cells and at least one of the second cells are electrically connected in series, and the first cell and the second cell satisfy at least the following relationships: 0.08≤ΔR/ΔR≤3.50, and 0.10 mΩ/100 cycles≤ΔR≤0.40 mΩ/100 cycles, where ΔRis a discharge resistance growth rate of the first cell, and ΔRis a discharge resistance growth rate of the second cell; and IMP<IMP, where IMPis an alternating current impedance of the first cell, and IMPis an alternating current impedance of the second cell.