Ultra-high specific energy cathode materials for lithium-ion batteries and methods for producing the same
US-2024186483-A1 · Jun 6, 2024 · US
Soluble catalyst for lithium-air battery
US10069182B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10069182-B2 |
| Application number | US-201615190357-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 23, 2016 |
| Priority date | Nov 20, 2015 |
| Publication date | Sep 4, 2018 |
| Grant date | Sep 4, 2018 |
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Abstract
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A soluble catalyst for a lithium-air battery is provided. The soluble catalyst including a redox mediator (RM) has an ionization energy of about 5.5 to 7.5 eV under vacuum or an oxidation potential of 3.0 to 4.0 V and is well dissolved in an electrolyte without reacting with the electrolyte. In addition, the soluble catalyst has a HOMO level in an original state (RM), which is less than a formation energy of lithium peroxide (Li 2 O 2 ) but maximally close to the formation energy, and has a HOMO level in an oxidized state (RM + ), which is greater than a HOMO level of the electrolyte.
First claim
Opening claim text (preview).
What is claimed is: 1. A lithium-air battery, comprising: a catalyst, a cathode, and an anode, wherein the catalyst comprises: a redox mediator that is dissolved in an electrolyte, wherein an ionization energy of the redox mediator is of about 5.5 to 7.5 eV under vacuum state, and the redox mediator is 5,10-dimethylphenazine (DMPZ), 1,5-naphthalenediamine (NDA), 4,N,N-trimethylaniline (TMA), of 1-phenylpyrrolidine (PPD). 2. The lithium-air battery of claim 1 , wherein an oxidation potential of the redox mediator is greater than an equilibrium potential of lithium peroxide (Li 2 O 2 ). 3. The lithium-air battery of claim 2 , wherein the oxidation potential of the redox mediator is about 3.0 to 4.0 V. 4. The lithium-air battery of claim 1 , wherein the electrolyte is triethylene glycol dimethyl ether (TEGDME) or dimethyl sulfoxide (DMSO). 5. The lithium-air battery of claim 1 , wherein the redox mediator does not react with the electrolyte. 6. The lithium-air battery of claim 1 , wherein a highest occupied molecular orbital (HOMO) level of the redox mediator is less than a formation energy of Li 2 O 2 . 7. The lithium-air battery of claim 1 , wherein a highest occupied molecular orbital (HOMO) level of the redox mediator in an oxidized state is greater than a HOMO level of the electrolyte. 8. A vehicle comprising a lithium-air battery of claim 1 . 9. The lithium-air battery of claim 2 , wherein a highest occupied molecular orbital (HOMO) level of the redox mediator is less than a formation energy of Li 2 O 2 .
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Classifications
Organic or organo-metallic compounds · CPC title
Sulfur-containing compounds · CPC title
containing organic compounds or metal hydrides · CPC title
Constructional details of batteries specially adapted for electric vehicles · CPC title
Lithium (H01M4/405 takes precedence) · CPC title
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- What does patent US10069182B2 cover?
- A soluble catalyst for a lithium-air battery is provided. The soluble catalyst including a redox mediator (RM) has an ionization energy of about 5.5 to 7.5 eV under vacuum or an oxidation potential of 3.0 to 4.0 V and is well dissolved in an electrolyte without reacting with the electrolyte. In addition, the soluble catalyst has a HOMO level in an original state (RM), which is less than a forma…
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Seoul Nat Univ R&Db Foundation
- What technology area does this patent fall under?
- Primary CPC classification H01M12/08. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 04 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).