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Electrode for lithium-ion cell, lithium-ion cell, and method for manufacturing electrode for lithium-ion cell
US2020358078A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020358078-A1 |
| Application number | US-202016900382-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 12, 2020 |
| Priority date | Dec 20, 2013 |
| Publication date | Nov 12, 2020 |
| Grant date | — |
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- Title
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Abstract
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The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the lithium ion battery. The electrode has a thickness of 150 to 5000 μm. The electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material and a large number of active material particles (B). At least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface. The conductive path is in contact with the active material particles (B) around the conductive path.
First claim
Opening claim text (preview).
1 - 22 . (canceled) 23 . A method of producing an electrode for lithium ion batteries, the electrode comprising: a first main surface to be located adjacent to a separator of a lithium ion battery; and a second main surface to be located adjacent to a current collector of the lithium ion battery, wherein the electrode contains, between the first main surface and the second main surface, a conductive member (A) made of an electronically conductive material, a large number of active material particles (B), and a resin (F), at least part of the conductive member (A) forms a conductive path that electrically connects the first main surface to the second main surface, and the conductive path is in contact with the active material particles (B) around the conductive path, and the conductive member (A) comprises conductive fibers, the method comprising step (R 1 ) of hot-pressing a composition for an electrode containing the conductive member (A), the active material particles (B), and the resin (F) so as to fix the conductive member (A) and the active material particles (B) by the resin (F). 24 . (canceled)
Assignees
Inventors
Classifications
Metals · CPC title
involving compressing or compaction · CPC title
as layered products · CPC title
- H01M4/13Primary
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof · CPC title
Physical characteristics, e.g. porosity, surface area · CPC title
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- What does patent US2020358078A1 cover?
- The present invention aims to provide an electrode for lithium ion batteries which exhibits excellent electrical conductivity even if its thickness is large. The electrode for lithium ion batteries of the present invention includes a first main surface to be located adjacent to a separator of a lithium ion battery and a second main surface to be located adjacent to a current collector of the li…
- Who is the assignee on this patent?
- Sanyo Chemical Ind Ltd, Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification H01M4/13. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 12 2020 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).