Title:
TERNARY PRECURSOR WITH HIGH TAP DENSITY AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2023/207246
Kind Code:
A1
Abstract:
Disclosed herein are a ternary precursor with a high tap density and a method for preparing same. The method comprises the following steps: (1) adding a silicon dioxide emulsion into an alkaline substrate solution to give a mixed solution; (2) adding a mixed nickel-cobalt-manganese salt solution, a precipitant, a complexing agent, and a surfactant; (3) conducting solid-liquid separation to give a solid material, and drying and crushing to give a crushed material; (4) mixing the crushed material with the alkaline substrate solution and the surfactant; (5) repeating step (2); and (6) conducting solid-liquid separation to give a solid material, and washing and drying the solid material to give the ternary precursor with a high tap density. The precursor particle prepared according to the method has a higher tap density, and can provide excellent cycle performance for the positive electrode material.
Inventors:
YU HAIJUN (CN)
XIE YINGHAO (CN)
LI AIXIA (CN)
ZHANG XUEMEI (CN)
LI CHANGDONG (CN)
XIE YINGHAO (CN)
LI AIXIA (CN)
ZHANG XUEMEI (CN)
LI CHANGDONG (CN)
Application Number:
PCT/CN2023/074950
Publication Date:
November 02, 2023
Filing Date:
February 08, 2023
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
International Classes:
C01G53/00; C01B33/18
Foreign References:
| CN114735762A | 2022-07-12 | |||
| CN113603154A | 2021-11-05 | |||
| CN113193190A | 2021-07-30 | |||
| CN104362335A | 2015-02-18 | |||
| JP2015227263A | 2015-12-17 |
Other References:
CHENG LEI; WANG ZHI-XING; HE ZHEN-JIANG ;LI XIN-HAI; GUO HUA-JUN: "Influences of Different Preparation Methods on Structure,Morphology and Electrochemical Performance of 0. 5Li2MnO3ยท0.5Li( Ni1 /3Co1 /3Mn1/3)O2 Cathode Material", KUANGYE-GONGCHENG = MINING AND METALLURGICAL ENGINEERING, vol. 34, no. 6, 15 December 2014 (2014-12-15), pages 123 - 127, XP009550102, ISSN: 0253-6099
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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