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US 2026/0257936 A1Published application
Positive electrode active material, lithium ion secondary battery and method for manufacturing positive electrode active material
AssigneeHonda Motor Co., Ltd.
InventorsTakashi HAKARI, Ikuno MEGURO
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Abstract
A positive electrode active material including a lithium-iron composite fluoride as a principal component, the lithium-iron composite fluoride being represented by the following formula (1), where, x and y are numbers satisfying 0.4<x<1.2 and 0.01<y<0.5.
Claims8
A positive electrode active material comprising a lithium-iron composite fluoride as a principal component,
- the lithium-iron composite fluoride being represented by the following formula (1),
- where, x and y are numbers satisfying 0.4<x<1.2 and 0.01<y<0.5.
A method for manufacturing a positive electrode active material containing a lithium-iron composite fluoride as a principal component, the method comprising:
- using lithium fluoride, ferrous fluoride, and ferric fluoride as raw materials,
- wherein the lithium-iron composite fluoride is represented by the following formula (1),
- where, x and y are numbers satisfying:
- 0.4
- <
- x
- ≤
- 0.5
- ,
- and
- 0.01
- <
- y
- <
- 0.1
- or
- 0.2
- <
- y
- <
- 0.5
- ;
- 0.5
- <
- x
- ≤
- 0.7
- ,
- and
- 0.01
- <
- y
- <
- 0.5
- ;
- 0.7
- <
- x
- <
- 1.
- ,
- and
- 0.01
- <
- y
- <
- 0.1
- or
- 0.1
- <
- y
- <
- 0.4
- ;
- or
- 1.
- ≤
- x
- <
- 1.2
- ,
- and
- 0.05
- <
- y
- <
- 0
- .
- 2
- .
67 more elements
Dependencies are inferred from the claim text.