Carbonaceous material, method for preparing same, and secondary battery and electric device comprising same
Source: EPO OPS
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Dossier Overview
Application number
CN20228091569
Inventor
CHEN XIAOXIA; ZHANG XINXIN; MA YU; OUYANG CHUYING; ZHENG XIAOJI; LI XIAOLONG; LIN WENGUANG; CHEN SHANGDONG
Filing Date
Oct 21, 2022
Publication Date
Sep 27, 2024
Patent Family ID
90736683
IPC Classification
CPC Classification
The invention provides a carbonaceous material and a preparation method thereof, and a secondary battery and an electric device containing the carbonaceous material, after the carbonaceous material is subjected to an adsorption test for 100 hours by using water vapor under the conditions of 25 DEG C and 100% RH constant temperature and humidity, the adsorption mass of the water vapor is recorded as A, the initial mass of the carbonaceous material is recorded as B, and A/B is greater than or equal to 0.13 and less than or equal to 0.50. The capacity and the first coulombic efficiency of the carbonaceous material can be improved at the same time.
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