Negative electrode active material, method for producing a negative electrode active material, and lithium ion secondary battery
US-2016254525-A1 · Sep 1, 2016 · US
Method for producing negative electrode active material particle
US2022158166A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022158166-A1 |
| Application number | US-202217590849-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 2, 2022 |
| Priority date | Jun 1, 2017 |
| Publication date | May 19, 2022 |
| Grant date | — |
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Abstract
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Methods for producing a negative electrode active material particle which includes a silicon compound particle containing a silicon compound that contains oxygen. The methods including preparing a silicon compound particle containing a silicon compound that contains oxygen; inserting Li into the silicon compound particle; and heating, while stirring, the Li-inserted silicon compound particle in a furnace to produce a negative electrode active material particle, wherein at least part of Si constituting the silicon compound particle is present in at least one state selected from oxide of Si 2+ to Si 3+ containing no Li, and compound containing Li and Si 2+ to Si 3+ .
First claim
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1 . A method for producing a negative electrode active material particle including a silicon compound particle, comprising the steps of: preparing a silicon compound particle containing a silicon compound that contains oxygen; inserting Li into the silicon compound particle; and heating, while stirring, the Li-inserted silicon compound particle in a furnace to produce a negative electrode active material particle, wherein at least part of Si constituting the silicon compound particle is present in at least one state selected from oxide of Si 2+ to Si 3+ containing no Li, and compound containing Li and Si 2+ to Si 3+ .
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Classifications
Negative electrodes · CPC title
of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy (H01M4/505, H01M4/525 take precedence) · CPC title
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers · CPC title
Silicon oxides; Hydrates thereof {(preparing monoxide by reduction of siliceous material C01B33/182)} · CPC title
Alkali metal silicates ({C01B33/24} , C01B33/26 take precedence) · CPC title
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- What does patent US2022158166A1 cover?
- Methods for producing a negative electrode active material particle which includes a silicon compound particle containing a silicon compound that contains oxygen. The methods including preparing a silicon compound particle containing a silicon compound that contains oxygen; inserting Li into the silicon compound particle; and heating, while stirring, the Li-inserted silicon compound particle in…
- Who is the assignee on this patent?
- Shinetsu Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification H01M4/483. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 19 2022 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).