High ratio energy chargeable full-solid lithium air battery

A lithium-air battery and air electrode technology, applied in the field of electrochemistry, can solve the problems of few reports

Inactive Publication Date: 2008-09-17
FUDAN UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0006] The research on metal/oxygen (air) batteries

Method used

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  • High ratio energy chargeable full-solid lithium air battery
  • High ratio energy chargeable full-solid lithium air battery

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Embodiment 1

[0043] figure 1 It is a schematic diagram of the structure of a lithium-air battery. The battery is composed of an air electrode, a multi-layer waterproof solid electrolyte, and a metal lithium negative electrode. The first is the air diffusion layer, then the air electrode, and then the multi-layer water-gas protective layer, which acts as the electrolyte layer of the battery, and prevents the moisture and oxygen in the air from entering to cause chemical reactions, and then the metal lithium layer is used as the negative electrode. The whole battery is sealed with a multi-layer metal / plastic composite film, and there is a convenient seal on the packaging film in front of the air diffusion layer, which is opened when the battery is in use and closed when not in use. Wetting the hydrophobic lithium ion liquid in the air electrode.

[0044] Specific implementation method: Lithium electrode protection of multilayer electrolyte: The dense LIPON layer has been proved to be able t...

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Abstract

The present invention belongs to electrochemical technical field, specifically a high specific energy charging full-solid lithium air battery. The battery structure is: firstly an air diffusion layer, then an air electrode, composed of a meso-porous carbon/manganese oxide composite material, an oxygen-reduction catalyst and a macromolecule lithium electrolyte, next a multilayer aqueous vapour cover, not only serving as a electrolyte layer of the battery, but also blocking water an oxidation entering of the air, finally a metal lithium. The whole battery is sealed in the multiplayer metal/plastic, a portable sealing is on the top of the air diffusion layer which is opened when the battery is used, closed when the battery is not used. The invention adopts lithium air battery made by the meso-porous carbon / manganese oxide composite material and the room temperature ionic liquid electrolyte, the capacity achieves 800mAh/g, cycling more than 50 times. In the lithium air battery, the metal lithium has effective protection, making the Li/O2 reaction only in the electrochemical reaction, the lithium air battery not only has battery electrochemical capability, but also has excellent safety ability.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry, and in particular relates to a lithium-air battery, more specifically, to a high specific energy rechargeable lithium-air battery. Background technique [0002] With the continuous development of the economy, it will inevitably lead to the depletion of oil resources, environmental pollution, and the aggravation of global warming. Human beings must grasp the balance between the "three Es" of economic growth (Economic Growth), environmental protection (Environmental Protection) and energy supply (Energy Security). The comprehensive and high-efficiency development and utilization of new energy, energy-saving technology, and environmental technology has become a very necessary topic, and research and development of high-energy-density power supply systems and materials is imperative. [0003] In the past ten years, batteries based on lithium metal have dominated the development of high-perf...

Claims

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Application Information

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IPC IPC(8): H01M12/06
Inventor 余爱水王卫江张晓蓉张灯
Owner FUDAN UNIV
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