Active material, anode layer, battery, and methods for producing these
US-2021391576-A1 · Dec 16, 2021 · US
Negative electrode active material containing silicon clathrate ii
US2021066713A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021066713-A1 |
| Application number | US-202017002304-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 25, 2020 |
| Priority date | Aug 27, 2019 |
| Publication date | Mar 4, 2021 |
| Grant date | — |
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- Title
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Abstract
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Provided is a negative electrode active material that contains silicon clathrate II and that is suitable for a negative electrode of a lithium ion secondary battery. The negative electrode active material includes a silicon material in which silicon clathrate II represented by composition formula NaxSi136 (0≤x≤10) is contained and a volume of a pore having a diameter of not greater than 100 nm is not less than 0.025 cm3/g.
First claim
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1 . A negative electrode active material comprising a silicon material in which silicon clathrate II represented by composition formula Na x Si 136 (0≤x≤10) is contained and a volume of a pore having a diameter of not greater than 100 nm is not less than 0.025 cm 3 /g. 2 . A negative electrode comprising the negative electrode active material according to claim 1 . 3 . A lithium ion secondary battery comprising the negative electrode according to claim 2 .
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Classifications
mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title
Energy storage using batteries · CPC title
Inhibitors, e.g. gassing inhibitors, corrosion inhibitors · CPC title
Negative electrodes · CPC title
- H01M4/134Primary
Electrodes based on metals, Si or alloys · CPC title
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- What does patent US2021066713A1 cover?
- Provided is a negative electrode active material that contains silicon clathrate II and that is suitable for a negative electrode of a lithium ion secondary battery. The negative electrode active material includes a silicon material in which silicon clathrate II represented by composition formula NaxSi136 (0≤x≤10) is contained and a volume of a pore having a diameter of not greater than 100 nm …
- Who is the assignee on this patent?
- Toyota Jidoshokki Kk, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/134. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 04 2021 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).