Title:
FERROPHOSPHORUS LITHIUM-ION BATTERY POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/055517
Kind Code:
A1
Abstract:
Disclosed are a ferrophosphorus lithium-ion battery positive electrode material, and a preparation method therefor and a use thereof. The preparation method comprises the following steps: (1) mixing a water-soluble manganese salt solution with a water-soluble pyrophosphate solution, adding acid liquid to adjust the pH to acidic, then adding a water-soluble iron salt solution for undergoing a reaction to obtain a mixed solution; (2) mixing the mixed solution obtained in step (1) with an iron source, a lithium source, and a carbon source to form a mixture, then drying the mixture to obtain a dry material; and (3) calcining the dry material obtained in step (2) under an inert gas to obtain a ferrophosphorus lithium-ion battery positive electrode material. The ferrophosphorus lithium-ion battery positive electrode material prepared by using the preparation method has relatively high specific capacity and cycle performance.
Inventors:
WANG TAO (CN)
YU HAIJUN (CN)
XIE YINGHAO (CN)
LI AIXIA (CN)
ZHANG XUEMEI (CN)
LI CHANGDONG (CN)
YU HAIJUN (CN)
XIE YINGHAO (CN)
LI AIXIA (CN)
ZHANG XUEMEI (CN)
LI CHANGDONG (CN)
Application Number:
PCT/CN2023/077683
Publication Date:
March 21, 2024
Filing Date:
February 22, 2023
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
International Classes:
C01B25/45; H01M4/58; H01M10/0525
Foreign References:
| CN115432685A | 2022-12-06 | |||
| CN104037413A | 2014-09-10 | |||
| CN102779995A | 2012-11-14 | |||
| CN113659134A | 2021-11-16 | |||
| CN105702954A | 2016-06-22 | |||
| US20160013474A1 | 2016-01-14 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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