Anode for lithium metal battery, and electrochemical device comprising same
US-12176528-B2 · Dec 24, 2024 · US
Cathodes for lithium-air battery cells with acid electrolytes
US9397345B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9397345-B2 |
| Application number | US-201313949875-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2013 |
| Priority date | Aug 6, 2012 |
| Publication date | Jul 19, 2016 |
| Grant date | Jul 19, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
In various embodiments, the present disclosure provides a layered metal-air cathode for a metal-air battery. Generally, the layered metal-air cathode comprises an active catalyst layer, a transition layer bonded to the active catalyst layer, and a backing layer bonded to the transition layer such that the transition layer is disposed between the active catalyst layer and the backing layer.
First claim
Opening claim text (preview).
What is claimed is: 1. A layered metal-air cathode for a metal-air battery, said cathode comprising three layers laminated together, the three layers comprising: an active catalyst layer; a transition layer laminated to the active catalyst layer, the transition layer comprises carbon nanofibers; and a backing layer laminated to the transition layer such that the transition layer is disposed between the active catalyst layer and the backing layer. 2. The metal-air cathode of claim 1 , wherein the layered metal-air cathode is structured to have a total thickness of between 4-400 μm. 3. The metal-air cathode of claim 1 , wherein the active catalyst layer comprises electrocatalyst particles loaded onto one of nanosize carbon materials and metal oxide materials. 4. The metal-air cathode of claim 3 , wherein the electrocatalyst comprises one of a single electrocatalyst and a bifunctional electrocatalyst. 5. The metal-air cathode of claim 1 , wherein the active catalyst layer is fabricated to have a thickness of between 1-100 μm. 6. The metal-air cathode of claim 1 , wherein the transition layer is fabricated to have a thickness of between 5-100 μm. 7. The metal-air cathode of claim 1 , wherein the transition layer comprises a hydrophobic polymer. 8. The metal-air cathode of claim 1 , wherein the backing layer comprises one of a carbon fiber and a metal mesh having a plurality of open channels of a variety of sizes structured and operable facilitate air diffusion into the layered metal-air cathode. 9. The metal-air cathode of claim 1 , wherein the backing layer is fabricated to have a thickness of between 10-300 μm.
Assignees
Inventors
Classifications
Carbonaceous material · CPC title
Fuel cells · CPC title
on carbon or graphite · CPC title
- H01M4/8657Primary
layered · CPC title
in the form of layered or coated products · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9397345B2 cover?
- In various embodiments, the present disclosure provides a layered metal-air cathode for a metal-air battery. Generally, the layered metal-air cathode comprises an active catalyst layer, a transition layer bonded to the active catalyst layer, and a backing layer bonded to the transition layer such that the transition layer is disposed between the active catalyst layer and the backing layer.
- Who is the assignee on this patent?
- Xing Yangchuan, Huang Kan, Li Yunfeng, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01M4/8657. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 19 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).