Method of manufacturing electrode-separator composite, electrode-separator composite manufactured by the manufacturing method and lithium secondary battery comprising the same
US-2015380706-A1 · Dec 31, 2015 · US
Non-aqueous electrolyte secondary battery and method of manufacturing the same
US2016293922A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016293922-A1 |
| Application number | US-201615044172-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 16, 2016 |
| Priority date | Mar 30, 2015 |
| Publication date | Oct 6, 2016 |
| Grant date | — |
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- Title
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Abstract
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A non-aqueous electrolyte secondary battery includes a separator including a base material and a heat resistance layer formed on at least one main surface of the base material and containing inorganic particles and a resin binder. The non-aqueous electrolyte secondary battery further includes an electrode composite material layer stacked on the heat resistance layer and containing electrode active material particles and an interposed layer interposed between the heat resistance layer and the electrode composite material layer. In the interposed layer, the inorganic particles, the resin binder, and the electrode active material particles are present as being mixed. A ratio of a thickness of the interposed layer to a thickness of the base material is not lower than 1% and not higher than 5%.
First claim
Opening claim text (preview).
What is claimed is: 1 . A non-aqueous electrolyte secondary battery, comprising: a separator including a base material and a heat resistance layer formed on at least one main surface of said base material and containing inorganic particles and a resin binder; an electrode composite material layer stacked on said heat resistance layer and containing electrode active material particles; and an interposed layer interposed between said heat resistance layer and said electrode composite material layer, in said interposed layer, said inorganic particles, said resin binder, and said electrode active material particles being present as being mixed, and a ratio of a thickness of said interposed layer to a thickness of said base material being not lower than 1% and not higher than 5%. 2 . The non-aqueous electrolyte secondary battery according to claim 1 , wherein said inorganic particles include an angular protruding portion of which interior angle is not smaller than 10° and not greater than 90°, and said heat resistance layer contains 30 mass % or more and 70 mass % or less of said resin binder. 3 . A method of manufacturing the non-aqueous electrolyte secondary battery according to claim 1 , comprising the steps of: stacking said electrode composite material layer on said heat resistance layer; and holding a stack of said heat resistance layer and said electrode composite material layer in an environment at a temperature not lower than 80° C. and not higher than 120° C. while a pressure not lower than 8 MPa and not higher than 20 MPa is applied in a direction of stack of said heat resistance layer and said electrode composite material layer.
Assignees
Inventors
Classifications
Manufacturing processes of separators, membranes or diaphragms · CPC title
- H01M2/1673Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US2016293922A1 cover?
- A non-aqueous electrolyte secondary battery includes a separator including a base material and a heat resistance layer formed on at least one main surface of the base material and containing inorganic particles and a resin binder. The non-aqueous electrolyte secondary battery further includes an electrode composite material layer stacked on the heat resistance layer and containing electrode act…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M2/1673. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 06 2016 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).