Positive electrode active material and preparation method thereof, positive electrode plate, secondary battery, battery module, battery pack, and electric apparatus
US-2024429384-A1 · Dec 26, 2024 · US
Lithium-Ion Secondary Battery and Manufacturing Method for the Same
US2023178732A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023178732-A1 |
| Application number | US-202017921901-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 21, 2020 |
| Priority date | May 21, 2020 |
| Publication date | Jun 8, 2023 |
| Grant date | — |
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Abstract
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A lithium ion secondary battery has, as a positive electrode active material into and from which lithium ions can be intercalated and deintercalated, a lithium oxide represented by Formula Li(1+y)CoPO4X(y) (in the formula, X is selected from the group consisting of F, Cl, Br and I, and y lies in the range of 1<y≤2).
First claim
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1 . A lithium ion secondary battery comprising: as a positive electrode active material into and from which lithium ions can be intercalated and deintercalated, a lithium oxide represented by Formula Li (1+y) CoPO 4 X (y) (in the formula, X is selected from the group consisting of F, Cl, Br and I, and y lies in the range of 1<y≤2). 2 . A method for producing a lithium ion secondary battery, the method comprising: a mixing and pulverizing step of obtaining a precursor by mixing and pulverizing a starting material containing Formula LiCoPO 4 , and formula yLiX (in the formula, X is selected from the group consisting of F, Cl, Br and I, and y lies in the range of 1<y≤2), within a container having an inert gas enclosed therein; and a thermal treatment step of obtaining a positive electrode active material represented by Formula Li (1+y) CoPO 4 X (y) (in the formula, X is selected from the group consisting of F, Cl, Br and I, and y lies in the range of 1<y≤2), by thermally treating said precursor in an inert gas. 3 . The method for producing a lithium ion secondary battery of claim 2 , comprising: a mixing step of carbon-coating said positive electrode active material.
Assignees
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Classifications
Energy storage using batteries · CPC title
- H01M4/5825Primary
Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title
as layered products · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Solid solutions · CPC title
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- What does patent US2023178732A1 cover?
- A lithium ion secondary battery has, as a positive electrode active material into and from which lithium ions can be intercalated and deintercalated, a lithium oxide represented by Formula Li(1+y)CoPO4X(y) (in the formula, X is selected from the group consisting of F, Cl, Br and I, and y lies in the range of 1<y≤2).
- Who is the assignee on this patent?
- Nippon Telegraph & Telephone
- What technology area does this patent fall under?
- Primary CPC classification H01M4/5825. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jun 08 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).