Production process for alkali metal-sulfur batteries having high volumetric and gravimetric energy densities
US-2017207488-A1 · Jul 20, 2017 · US
Negative electrode for lithium ion secondary battery
US2021313574A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021313574-A1 |
| Application number | US-201917057754-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 9, 2019 |
| Priority date | May 29, 2018 |
| Publication date | Oct 7, 2021 |
| Grant date | — |
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- Title
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Abstract
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Provided is a negative electrode for a lithium ion secondary battery capable of obtaining a lithium ion secondary battery having a high capacity and excellent charge-and-discharge cycle characteristics. A negative electrode for a lithium ion secondary battery ( 1 ) includes: a current collector ( 3 ) composed of a metal porous body having a three-dimensional network structure ( 2 ); and a negative electrode active material ( 4 ) held on the current collector ( 3 ). An overcoat layer ( 5 ) covering an outer surface of the current collector ( 3 ) is included, and the overcoat layer ( 5 ) includes hard carbon.
First claim
Opening claim text (preview).
1 . A negative electrode for a lithium ion secondary battery comprising: a current collector composed of a metal porous body having a three-dimensional network structure; and a negative electrode active material held on the current collector, wherein the negative electrode comprises an overcoat layer covering an outer surface of the current collector, and the overcoat layer comprises hard carbon. 2 . The negative electrode for the lithium ion secondary battery according to claim 1 , wherein the negative electrode active material is at least one selected from the group consisting of artificial graphite, natural graphite, hard carbon, Si, and Si compounds. 3 . The negative electrode for the lithium ion secondary battery according to claim 2 , wherein the negative electrode active material is any one of artificial graphite or natural graphite.
Assignees
Inventors
Classifications
- H01M4/133Primary
Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
- H01M4/583Primary
Carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
by coating on electrode collectors · CPC title
in the form of layers, e.g. coatings · CPC title
Negative electrodes · CPC title
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- What does patent US2021313574A1 cover?
- Provided is a negative electrode for a lithium ion secondary battery capable of obtaining a lithium ion secondary battery having a high capacity and excellent charge-and-discharge cycle characteristics. A negative electrode for a lithium ion secondary battery ( 1 ) includes: a current collector ( 3 ) composed of a metal porous body having a three-dimensional network structure ( 2 ); and a negat…
- Who is the assignee on this patent?
- Honda Motor Co Ltd, Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification H01M4/133. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 07 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).