Title:
CARBONACEOUS MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY CONTAINING CARBONACEOUS MATERIAL, AND ELECTRIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/082304
Kind Code:
A1
Abstract:
Provided in the present application are a carbonaceous material and a preparation method therefor, a secondary battery containing the carbonaceous material, and an electric apparatus. In a CO2 adsorption test, at 0°C and a relative pressure P/P0 between 10-8 to 0.029, the total CO2 adsorption amount of the carbonaceous material is denoted as A, and the adsorption time is denoted as B, such that the carbonaceous material satisfies A/B ≥ 1.7 cm3/(g × h) STP, wherein STP refers to a standard condition, P represents a test pressure of CO2, and P0 represents the saturated vapor pressure of CO2 at 0°C. The carbonaceous material of the present application has both a relatively large capacity and a relatively high initial coulombic efficiency.
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Inventors:
CHEN XIAOXIA (CN)
ZHANG XINXIN (CN)
OUYANG CHUYING (CN)
MA YU (CN)
LI XIAOLONG (CN)
ZHENG XIAOJI (CN)
LIN WENGUANG (CN)
CHEN SHANGDONG (CN)
ZHANG XINXIN (CN)
OUYANG CHUYING (CN)
MA YU (CN)
LI XIAOLONG (CN)
ZHENG XIAOJI (CN)
LIN WENGUANG (CN)
CHEN SHANGDONG (CN)
Application Number:
PCT/CN2022/126830
Publication Date:
April 25, 2024
Filing Date:
October 21, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M4/583; H01M4/78
Domestic Patent References:
| WO2021215397A1 | 2021-10-28 |
Foreign References:
| CN113437294A | 2021-09-24 | |||
| US20020039686A1 | 2002-04-04 | |||
| CN109694071A | 2019-04-30 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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