Invention Grant
- Patent Title: Fast charge long-lifetime secondary battery, battery module, battery pack, and power consumption device
-
Application No.: US17930420Application Date: 2022-09-08
-
Publication No.: US11888116B2Publication Date: 2024-01-30
- Inventor: Peipei Chen , Chang Peng , Hailin Zou
- Applicant: Contemporary Amperex Technology Co., Limited
- Applicant Address: CN Ningde
- Assignee: Contemporary Amperex Technology Co., Limited
- Current Assignee: Contemporary Amperex Technology Co., Limited
- Current Assignee Address: CN Ningde
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: H01M10/0525
- IPC: H01M10/0525 ; H01M10/0567 ; H01M50/534 ; H01M10/0568

Abstract:
The present disclosure provides a fast charge long lifetime secondary battery, a battery module, a battery pack, and a power consumption device. In some embodiments, a secondary battery, comprising an electrode assembly and an electrolytic solution, the electrode assembly comprises a positive electrode plate, a negative electrode plate, and a separator, the positive electrode plate comprises a positive electrode tab, and the negative electrode plate comprises a negative electrode tab are provided. In those embodiments, the positive electrode tab has the following temperature rise coefficient:
α
=
C
1
0
S
1
where S1 is a total cross-sectional area of the positive electrode tab, in unit of mm2; C is capacity of the electrode assembly, in unit of A·h; the electrolytic solution contains a heat stable salt and an additive that inhibits decomposition of the lithium salt.
α
=
C
1
0
S
1
where S1 is a total cross-sectional area of the positive electrode tab, in unit of mm2; C is capacity of the electrode assembly, in unit of A·h; the electrolytic solution contains a heat stable salt and an additive that inhibits decomposition of the lithium salt.
Public/Granted literature
- US20230091618A1 FAST CHARGE LONG-LIFETIME SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND POWER CONSUMPTION DEVICE Public/Granted day:2023-03-23
Information query