US Patent Application 18321778. SECONDARY BATTERY AND PREPARATION METHOD THEREOF AND BATTERY MODULE, BATTERY PACK AND DEVICE COMPRISING THE SECONDARY BATTERY simplified abstract
SECONDARY BATTERY AND PREPARATION METHOD THEREOF AND BATTERY MODULE, BATTERY PACK AND DEVICE COMPRISING THE SECONDARY BATTERY
Organization Name
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor(s)
Baozhen Wu of Ningde City (CN)
Yonghuang Ye of Ningde City (CN)
SECONDARY BATTERY AND PREPARATION METHOD THEREOF AND BATTERY MODULE, BATTERY PACK AND DEVICE COMPRISING THE SECONDARY BATTERY - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 18321778 Titled 'SECONDARY BATTERY AND PREPARATION METHOD THEREOF AND BATTERY MODULE, BATTERY PACK AND DEVICE COMPRISING THE SECONDARY BATTERY'
Simplified Explanation
The abstract describes a secondary battery and its preparation method, as well as a battery module, battery pack, and device that include this secondary battery. The secondary battery consists of an electrode assembly, which includes a main body part and a tab extending from it. The negative electrode plate within the electrode assembly is composed of a negative electrode current collector and a negative electrode film layer. The negative electrode film layer is made up of a first region and two second regions on either side of the first region. The first region contains a first negative electrode active material, specifically artificial graphite. The second regions contain a second negative electrode active material, which is graphite.
Original Abstract Submitted
A secondary battery and a preparation method thereof and a battery module, a battery pack and a device comprising the secondary battery are provided. The secondary battery comprises an electrode assembly, which comprises a main body part and a tab extending from the main body part, which comprises a negative electrode plate, and the negative electrode plate comprises a negative electrode current collector and a negative electrode film layer provided on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises a first region and second regions provided on both sides of the first region in the extension direction of the tab, the first region comprises a first negative electrode active material, the first negative electrode active material comprising artificial graphite, and each of the second regions comprises a second negative electrode active material, the second negative electrode active material comprising graphite.
