Rechargeable air battery and manufacturing method thereof

An air battery pack and air cathode technology, applied in the direction of non-aqueous electrolyte batteries, secondary batteries, lithium batteries, etc., can solve the problems of limited rechargeability and other issues

Inactive Publication Date: 2009-04-15
JOHNSON RES & DEV INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with current air battery packs is their limited rechargeability

Method used

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  • Rechargeable air battery and manufacturing method thereof
  • Rechargeable air battery and manufacturing method thereof
  • Rechargeable air battery and manufacturing method thereof

Examples

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Embodiment Construction

[0026] Referring next to the drawings, there is shown a battery or electrochemical cell 10 embodying the principles of the invention in a preferred form and a method of production thereof. Cell 10 includes air cathode 11 , cathode current collector 12 , separator 13 , anode 14 and anode current collector 15 .

[0027] To produce cell 10, prepare by first wetting 14.22 g of Calgon carbon, 0.56 g of acetylene black and 0.38 g of electrolytic manganese dioxide with 60 ml of a mixture of isopropanol and water (1:2 by weight) Teflon bonded Calgon carbon (activated carbon) based air cathode 11 . Electrolytic manganese dioxide is a redox catalyst, preferably provided in a concentration of 1% to 30% by weight. Alternatives to electrolytic manganese dioxide are ruthenium oxide, silver, platinum and iridium. Next, 2.92g of Teflon 30 (60% Teflon emulsion in water) was added to the above mixture, mixed, and placed in a jar with ceramic balls to mix overnight on a roller. After mixing, ...

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Abstract

An air battery having an air cathode having a porous carbon based air cathode containing a non-aqueous organic solvent based electrolyte including a lithium salt and an alkylene carbonage additive. The battery also includes a separator loaded with an organic solvent based electrolyte including a lithium salt and an alkylene carbonate additive, a cathode current collector, an anode, an anode current collector, and a housing. The housing contains the cathode, separator, cathode current collector, anode, anode current collector, and a supply of air.

Description

technical field [0001] The present invention relates generally to batteries, and more particularly to air cathode type batteries. Background technique [0002] A lithium-air battery consists of a lithium anode electrochemically coupled to atmospheric oxygen via an air cathode. Oxygen introduced into the battery through the air cathode is an essentially unlimited source of cathode reactants. These batteries have very high specific energy and relatively flat discharge voltage curves. The problem with current air batteries is their limited rechargeability. [0003] It would be beneficial to provide lithium-air batteries that are rechargeable and easier to manufacture than prior art batteries. Accordingly, the present invention is primarily directed to providing such lithium-air batteries. Contents of the invention [0004] In a preferred form of the invention, the air battery comprises an air cathode having a porous carbon based air cathode containing a non-aqueous organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06
CPCH01M4/587H01M10/0567H01M10/0568H01M4/90H01M12/08H01M10/052Y02E60/50Y02E60/128Y02E60/122H01M4/133H01M4/131Y02E60/10H01M12/06
Inventor 朗尼·G·约翰逊普拉巴卡·A·塔米里萨继-光·张
Owner JOHNSON RES & DEV INC
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