Hybrid-type secondary battery including electrodes having different output and capacity properties
US-2016276703-A1 · Sep 22, 2016 · US
Lithium ion secondary battery electrode
US2021119202A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021119202-A1 |
| Application number | US-201917054602-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 8, 2019 |
| Priority date | May 17, 2018 |
| Publication date | Apr 22, 2021 |
| Grant date | — |
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- Title
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Abstract
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Provided is a lithium ion secondary battery electrode allowing excellent charge-and-discharge cycle characteristics to be obtained when used in a lithium ion secondary battery. The lithium ion secondary battery electrode includes a current collector composed of a metal porous body having a three-dimensional network structure in which columnar skeletons are three-dimensionally connected, a first active material held on one side of the current collector, and a second active material held on the other side of the current collector.
First claim
Opening claim text (preview).
1 . A lithium ion secondary battery electrode comprising: a current collector composed of a metal porous body having a three-dimensional network structure; a first active material held on one side of the current collector; and a second active material held on the other side of the current collector. 2 . The lithium ion secondary battery electrode according to claim 1 , wherein the first active material comprises a high-capacity active material and the second active material comprises a high-power active material. 3 . The lithium ion secondary battery electrode according to claim 2 , wherein a thickness of the first active material held on one side of the current collector is larger than a thickness of the second active material held on the other side of the current collector. 4 . The lithium ion secondary battery electrode according to claim 2 , wherein the high-capacity active material comprises at least one composite metal oxide selected from a group consisting of Li(Ni 5/10 Co 2/10 Mn 3/10 )O 2 , Li(Ni 6/10 Co 2/10 Mn 2/10 )O 2 , Li(Ni 8/10 Co 1/10 Mn 1/10 O 2 , and Li(Ni 0.8 Co 0.15 Al 0.05 )O 2 , and the high-power active material comprises at least one composite metal oxide selected from a group consisting of Li(Ni 1/6 Co 4/6 Mn 1/6 )O 2 and Li(Ni 1/3 Co 1/3 Mn 1/3 )O 2 . 5 . The lithium ion secondary battery electrode according to claim 2 , wherein the high-capacity active material comprises at least one material selected from a group consisting of artificial graphite, natural graphite, Si, and SiO, and the high-power active material comprises hard carbon.
Assignees
Inventors
Classifications
for non-aqueous cells (H01M4/485 takes precedence) · CPC title
- H01M4/587Primary
for inserting or intercalating light metals · CPC title
Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Silicon or alloys based on silicon · CPC title
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- What does patent US2021119202A1 cover?
- Provided is a lithium ion secondary battery electrode allowing excellent charge-and-discharge cycle characteristics to be obtained when used in a lithium ion secondary battery. The lithium ion secondary battery electrode includes a current collector composed of a metal porous body having a three-dimensional network structure in which columnar skeletons are three-dimensionally connected, a first…
- 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 H01M4/587. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Apr 22 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).