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Non-aqueous magnesium-air battery

A storage battery, non-aqueous technology, applied to batteries, hybrid batteries, battery electrodes, etc., can solve problems such as limiting battery potential

Active Publication Date: 2018-02-13
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnesium-based aqueous primary batteries have been demonstrated, but the presence of aqueous systems limits the achievable cell potentials, and moreover, for the possible preparation of rechargeable aqueous magnesium-air batteries, water-induced corrosion of magnesium must be prevented

Method used

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  • Non-aqueous magnesium-air battery
  • Non-aqueous magnesium-air battery
  • Non-aqueous magnesium-air battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0071] Experiment I

[0072] according to figure 1 The schematic structure of a magnesium-air battery is constructed. The anode is magnesium foil. The electrolyte is 0.75M Mg(BH 4 ) 2 . The cathode is carbon paper and supplies oxygen to the battery. figure 2 Ar (open circle) and O are shown 2 (solid circle) impedance curve. The impedance is too high to discharge the battery at a relatively fast current. image 3 with Figure 4 The first discharge cycle and multiple cycles are shown, respectively. A discharge plateau-like curve was observed at about 1.4V. However, the obtained capacity is insufficient.

[0073] Experiment II

[0074] according to figure 1 The schematic structure of a magnesium-air battery is constructed. The anode is magnesium foil. The electrolyte is 1:3 Mg(BH 4 ) 2 : LiBH 4 . The cathode is carbon paper and supplies oxygen to the battery. Figure 5A with 5B A first discharge curve and a plurality of discharge curves of the battery are sh...

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PUM

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Abstract

A magnesium-air battery is described. The battery comprises: an anode compartment; a cathode compartment; and a membrane separating the anode compartment from the cathode compartment. The anode compartment comprises an anode having magnesium, a magnesium alloy or a material capable of insertion and extraction of magnesium, while the cathode compartment comprises an air electrode, a glyme ether oran ionic liquid capable of supporting the reduction of oxygen and a soluble magnesium salt.

Description

technical field [0001] This embodiment relates to a magnesium-air storage battery. Background technique [0002] Lithium (Li)-ion technology dominates the market as an energy source for small electronic devices and even hybrid and electric vehicles. However, current lithium-ion secondary batteries have insufficient energy density as an energy source capable of operating electric vehicles as a future high-energy-density storage source. [0003] Metal-air batteries have been investigated as an advanced generation high energy density source with the theoretical potential to drive vehicle installations at distances comparable to existing hydrocarbon internal combustion engines. In a metal-air battery, the metal of the anode is oxidized, and the resulting cations travel to the cathode region of a porous matrix containing a material such as carbon, for example, where the oxygen is reduced and the reduced product combines with the metal cations to form oxides or superoxides. oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/08
CPCH01M12/08H01M4/466H01M2220/20Y02E60/10H01M10/054H01M10/0569H01M10/0568H01M12/085H01M10/056
Inventor N·辛格T·S·阿瑟尔水野史教
Owner TOYOTA JIDOSHA KK