Secondary battery, battery pack, and vehicle
US-2018269537-A1 · Sep 20, 2018 · US
Negative electrode current collector, negative electrode, and aqueous lithium ion secondary battery
US2019027745A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019027745-A1 |
| Application number | US-201816021812-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 28, 2018 |
| Priority date | Jul 18, 2017 |
| Publication date | Jan 24, 2019 |
| Grant date | — |
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Abstract
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There is provided a negative electrode current collector that is used in contact with an aqueous electrolyte solution in an aqueous lithium ion secondary battery, including a surface in contact with the aqueous electrolyte solution, the surface including a material containing at least one selected from the group consisting of Ti, Pb, Zn, Sn, Mg, Zr and In as a main component.
First claim
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What is claimed is: 1 . A negative electrode current collector for an aqueous lithium ion secondary battery, comprising: a surface in contact with an aqueous electrolyte solution, the surface including a material containing at least one selected from the group consisting of Ti, Pb, Zn, Sn, Mg, Zr and In as a main component. 2 . The negative electrode current collector according to claim 1 , wherein, the surface includes the material containing Ti as a main component. 3 . A negative electrode for an aqueous lithium ion secondary battery, comprising: the negative electrode current collector according to claim 1 ; and a negative electrode active material layer that includes a negative electrode active material and is in contact with the negative electrode current collector. 4 . The negative electrode according to claim 3 , wherein the negative electrode active material contains lithium titanate. 5 . An aqueous lithium ion secondary battery, comprising: the negative electrode current collector according to claim 1 ; a negative electrode active material layer that includes a negative electrode active material and is in contact with the negative electrode current collector; a positive electrode current collector; a positive electrode active material layer that includes a positive electrode active material and is in contact with the positive electrode current collector; and an aqueous electrolyte solution containing water and an electrolyte, wherein the negative electrode current collector is in contact with the aqueous electrolyte solution. 6 . The aqueous lithium ion secondary battery according to claim 5 , wherein the negative electrode active material contains lithium titanate. 7 . The aqueous lithium ion secondary battery according to claim 5 , wherein a pH of the aqueous electrolyte solution is within a range of 3 to 11. 8 . The aqueous lithium ion secondary battery according to claim 5 , wherein the electrolyte contains lithium bis(trifluoromethanesulfonyl)imide, and the aqueous electrolyte solution contains the lithium bis(trifluoromethanesulfonyl)imide such that an amount of substance of the lithium bis(trifluoromethanesulfonyl)imide is within a range of 7.5 mol to 12.5 mol per kg of the water. 9 . The aqueous lithium ion secondary battery according to claim 5 , wherein the positive electrode active material contains Li. 10 . The aqueous lithium ion secondary battery according to claim 9 , wherein the positive electrode active material contains Mn.
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- What does patent US2019027745A1 cover?
- There is provided a negative electrode current collector that is used in contact with an aqueous electrolyte solution in an aqueous lithium ion secondary battery, including a surface in contact with the aqueous electrolyte solution, the surface including a material containing at least one selected from the group consisting of Ti, Pb, Zn, Sn, Mg, Zr and In as a main component.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/661. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jan 24 2019 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).