Rechargeable battery
US-9225043-B2 · Dec 29, 2015 · US
Aqueous battery
US2021203010A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021203010-A1 |
| Application number | US-202017117783-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 10, 2020 |
| Priority date | Dec 25, 2019 |
| Publication date | Jul 1, 2021 |
| Grant date | — |
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Abstract
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A novel aqueous battery configured to use sulfuric acid ions (SO42−) as carrier ions. The aqueous battery is an aqueous battery comprising a cathode layer, an anode layer and an aqueous liquid electrolyte, wherein the cathode layer contains, as a cathode active material, a graphite; wherein the anode layer contains, as an anode active material, at least one selected from the group consisting of an elemental Zn, an elemental Cd, an elemental Fe, an elemental Sn, a Zn alloy, a Cd alloy, an Fe alloy, an Sn alloy, ZnSO4, CdSO4, FeSO4 and Sn5O4; wherein, as an electrolyte, at least one sulfate selected from the group consisting of ZnSO4, CdSO4, FeSO4 and Sn5O4 is dissolved in the aqueous liquid electrolyte; and wherein the aqueous liquid electrolyte has a pH of 3 or more and 14 or less.
First claim
Opening claim text (preview).
1 . An aqueous battery comprising a cathode layer, an anode layer and an aqueous liquid electrolyte, wherein the cathode layer contains, as a cathode active material, a graphite; wherein the anode layer contains, as an anode active material, at least one selected from the group consisting of an elemental Zn, an elemental Cd, an elemental Fe, an elemental Sn, a Zn alloy, a Cd alloy, an Fe alloy, an Sn alloy, ZnSO 4 , CdSO 4 , FeSO 4 and SnSO 4 ; wherein, as an electrolyte, at least one sulfate selected from the group consisting of ZnSO 4 , CdSO 4 , FeSO 4 and SnSO 4 is dissolved in the aqueous liquid electrolyte; and wherein the aqueous liquid electrolyte has a pH of 3 or more and 14 or less. 2 . The aqueous battery according to claim 1 , wherein the anode active material is at least one selected from the group consisting of an elemental Zn, a Zn alloy and ZnSO 4 , and the sulfate is ZnSO 4 ; the anode active material is at least one selected from the group consisting of an elemental Cd, a Cd alloy and CdSO 4 , and the sulfate is CdSO 4 ; the anode active material is at least one selected from the group consisting of an elemental Fe, an Fe alloy and FeSO 4 , and the sulfate is FeSO 4 ; or the anode active material is at least one selected from the group consisting of an elemental Sn, an Sn alloy and SnSO 4 , and the sulfate is SnSO 4 . 3 . The aqueous battery according to claim 1 , wherein the anode active material is at least one selected from the group consisting of an elemental Zn, a Zn alloy and ZnSO 4 .
Assignees
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Classifications
Energy storage using batteries · CPC title
Manufacturing or production processes characterised by the final manufactured product · CPC title
Aqueous electrolytes · CPC title
- H01M10/36Primary
Accumulators not provided for in groups H01M10/05-H01M10/34 · CPC title
Sulfuric acid-based · CPC title
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- What does patent US2021203010A1 cover?
- A novel aqueous battery configured to use sulfuric acid ions (SO42−) as carrier ions. The aqueous battery is an aqueous battery comprising a cathode layer, an anode layer and an aqueous liquid electrolyte, wherein the cathode layer contains, as a cathode active material, a graphite; wherein the anode layer contains, as an anode active material, at least one selected from the group consisting of…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 01 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).