Title:
LITHIUM BATTERY POSITIVE ELECTRODE MATERIAL AND PRODUCTION PROCESS THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/098160
Kind Code:
A1
Abstract:
Disclosed in the present invention is a production process of a lithium battery positive electrode material, comprising the following steps: (1) temperature difference test: putting, into a sagger, a material to be sintered, placing the sagger into a roller kiln heat preservation area, setting a same sintering temperature t on the upper layer and the lower layer of the roller kiln heat preservation area according to the characteristics of said material, sintering in a specific atmosphere, and measuring a temperature difference Δt between material surface layer and bottom layer during sintering; and (2) formal sintering: putting said material into the sagger, placing the sagger into the roller kiln heat preservation area, setting the sintering temperature of the upper layer of the roller kiln heat preservation area as t according to the temperature differenceΔt measured in step (1), the sintering temperature of the lower layer being (t+Δt), and sintering said material in a specific atmosphere. The production process can effectively improve the consistency of the prepared lithium battery positive electrode material.
More Like This:
| WO/2022/049819 | CERAMIC ROLLER |
Inventors:
WANG QIAN (CN)
LI CHANGDONG (CN)
RUAN DINGSHAN (CN)
LIU WEIJIAN (CN)
LIU JINGJING (CN)
CAI YONG (CN)
LI CHANGDONG (CN)
RUAN DINGSHAN (CN)
LIU WEIJIAN (CN)
LIU JINGJING (CN)
CAI YONG (CN)
Application Number:
PCT/CN2022/114288
Publication Date:
June 08, 2023
Filing Date:
August 23, 2022
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:
F27B9/30; F27B9/40; H01M4/139; H01M10/0525
Foreign References:
| CN114251941A | 2022-03-29 | |||
| CN214406926U | 2021-10-15 | |||
| CN214842395U | 2021-11-23 | |||
| JP2003077398A | 2003-03-14 | |||
| CN110819790A | 2020-02-21 | |||
| CN210322062U | 2020-04-14 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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