Transition metal composite hydroxide particles and production method thereof, cathode active material for non-aqueous electrolyte rechargeable battery and production method thereof, and nonaqueous electrolyte rechargeable battery
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 22, 2022
Grant Date -
Jan 2, 2020
app pub date -
Aug 13, 2019
filing date -
Aug 13, 2019
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Abstract
Transition metal composite hydroxide particles as a precursor to a cathode active material for use in a non-aqueous electrolyte rechargeable battery, where the transition metal composite hydroxide has secondary particles formed by an aggregation of plate-shaped primary particles and fine primary particles, are described. The secondary particles have a center section formed by the plate-shaped primary particles, a layered structure with a low-density section formed by the fine primary particles, and a high-density section formed by the plate-shaped primary particles on the outside of the center section. The average value of the ratio of the center section outer diameter to the particle size of the secondary particles is 30% to 80%, and the average value of the ratio of the high-density section radial direction thickness to the particle size of the secondary particles is 5% to 25%.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SUMITOMO METAL MINING CO LTD | TOKYO 105-8716 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Aida, Taira | Ehime, JP | 31 | 147 |
# of filed Patents : 31 Total Citations : 147 | |||
Kamata, Yasutaka | Ehime, JP | 16 | 107 |
# of filed Patents : 16 Total Citations : 107 | |||
Toya, Hiroyuki | Ehime, JP | 53 | 652 |
# of filed Patents : 53 Total Citations : 652 |
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