Metal-air cell
US-2015214591-A1 · Jul 30, 2015 · US
Storage battery
US10044016B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10044016-B2 |
| Application number | US-201615214126-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2016 |
| Priority date | Jul 30, 2015 |
| Publication date | Aug 7, 2018 |
| Grant date | Aug 7, 2018 |
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Abstract
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A storage battery includes a negative electrode including, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof, a positive electrode, a separator, and an electrolyte containing an additive. In the storage battery, a concentration of the additive in the electrolyte in a region on a side of the negative electrode defined by the separator is higher than a concentration of the additive in a region on a side of the positive electrode.
First claim
Opening claim text (preview).
What is claimed is: 1. A storage battery comprising: a negative electrode including, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof; a positive electrode; a separator; and an electrolyte containing an additive, wherein the additive can move in the electrolyte through diffusion or migration, a concentration of the additive in the electrolyte in a region on a side of the negative electrode defined by the separator is higher than a concentration of the additive in a region on a side of the positive electrode, and the electrolyte is an alkaline electrolyte solution. 2. The storage battery according to claim 1 , wherein the separator is a semipermeable membrane. 3. The storage battery according to claim 1 , wherein the separator is an ion-exchange membrane. 4. The storage battery according to claim 1 , wherein the additive is a substance capable of enhancing charge-discharge characteristics of the negative electrode. 5. The storage battery according to claim 1 , wherein the additive is a substance capable of reducing the solubility of at least one of the metal capable of forming a dendrite and the metal compound thereof in the electrolyte. 6. The storage battery according to claim 1 , wherein the additive is an organic substance. 7. The storage battery according to claim 1 , wherein a viscosity of the electrolyte in the region on the negative electrode side is 70 Pa·s or less. 8. The storage battery according to claim 1 , wherein the maximum operating potential of the positive electrode is 0.4 V or more relative to a potential of an electrode of Hg/HgO. 9. The storage battery according to claim 1 , wherein the separator is an anion-exchange membrane. 10. The storage battery according to claim 1 , wherein the separator is an ion-exchange membrane, and the ion-exchange membrane contains polyolefin as a substrate. 11. A storage battery comprising: a negative electrode including, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof; a positive electrode; a separator; and an electrolyte containing an additive, wherein the additive can move in the electrolyte through diffusion or migration, a concentration of the additive in the electrolyte in a region on a side of the negative electrode defined by the separator is higher than a concentration of the additive in a region on a side of the positive electrode, and the separator is a grafted membrane.
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- What does patent US10044016B2 cover?
- A storage battery includes a negative electrode including, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof, a positive electrode, a separator, and an electrolyte containing an additive. In the storage battery, a concentration of the additive in the electrolyte in a region on a side of the negative electrode defined by the separator is hi…
- Who is the assignee on this patent?
- Gs Yuasa Int Ltd, Univ Kyoto
- What technology area does this patent fall under?
- Primary CPC classification H01M4/24. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 07 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).