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Patent Searching and Data


Title:
METHOD FOR PREPARING MULTI-STAGE PORE-FORMING LITHIUM IRON PHOSPHATE
Document Type and Number:
WIPO Patent Application WO/2021/000911
Kind Code:
A1
Abstract:
In order to solve the technical problems of low capacity and poor cycle performance of existing multi-stage lithium iron phosphate batteries, a method for preparing multi-stage pore-forming lithium iron phosphate is provided, comprising the following steps: preparing primary porous ammonium ferrous phosphate, preparing secondary porous lithium iron phosphate and preparing tertiary porous lithium iron phosphate, and finally synthesizing multi-stage pore-forming lithium iron phosphate. The prepared multi-stage pore-forming lithium iron phosphate has the technical effects of high battery capacity and excellent cycle performance, and is superior to lithium iron phosphate prepared in the prior art.

Inventors:
SHI MAOHU (CN)
LIU HONG (CN)
CHENG CHONG (CN)
QIU XIAOWEI (CN)
Application Number:
CN2020/099904
Publication Date:
January 07, 2021
Filing Date:
July 02, 2020
Export Citation:
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Assignee:
CHONGQING TERUI BATTERY MAT CO LTD (CN)
International Classes:
C01B25/45; H01M4/139; H01M4/1397; H01M4/58
Attorney, Agent or Firm:
CHONGQING SHUANGMA ZHIXIANG PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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