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Liquid metal anode material, room-temperature liquid metal battery, and preparation method and application

A technology of liquid metal battery and negative electrode material, applied in the field of materials, can solve the problem of high manufacturing cost of lithium ion energy storage battery, and achieve the effects of high specific energy, abundant material resources and high safety

Active Publication Date: 2015-11-25
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lithium-ion batteries have good performance as large-scale energy storage batteries, but the manufacturing cost of lithium-ion energy storage batteries is high
Therefore, there is currently no energy storage battery that can meet the comprehensive requirements of low cost, good safety, and abundant raw materials.

Method used

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  • Liquid metal anode material, room-temperature liquid metal battery, and preparation method and application
  • Liquid metal anode material, room-temperature liquid metal battery, and preparation method and application
  • Liquid metal anode material, room-temperature liquid metal battery, and preparation method and application

Examples

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Embodiment 1

[0088] Embodiment 1 of the present invention provides a liquid metal negative electrode material.

[0089] Wherein, the negative electrode material is a dark green liquid formed by mixing alkali metals, aromatic compounds and ether solvents;

[0090] Specifically, the alkali metal can be any one or more of sodium metal (Na), lithium metal (Li) or potassium metal (K);

[0091] The aromatic compound can be any one or more of biphenyl (BP), derivatives of biphenyl, naphthalene (NP), derivatives of naphthalene, anthracene or anthracene derivatives;

[0092] Among them; the derivatives of biphenyl can specifically be: biphenyl, dichlorobiphenyl, tetrachlorobiphenyl, terphenyl, x-methylbiphenyl, x-ethylbiphenyl, etc.;

[0093] Specifically, the derivatives of naphthalene can be: phenanthrene, dichloronaphthalene, tetrachloronaphthalene, x-methylnaphthalene, 1,4-dimethylnaphthalene, x-ethylnaphthalene.

[0094]The ether solvents include ether, methyl ether, ethylene glycol dimethyl...

Embodiment 2

[0104] Embodiment 2 of the present invention provides a method for preparing the liquid metal negative electrode material as described in Embodiment 1 above. The method comprises: in an argon protective atmosphere, adding an alkali metal and an aromatic compound into an ether solvent according to a certain molar ratio, and standing still to obtain the liquid metal negative electrode material.

[0105] Specifically, the alkali metal can be any one or more of sodium metal (Na), lithium metal (Li) or potassium metal (K);

[0106] The aromatic compound can be any one or more of biphenyl (BP), derivatives of biphenyl, naphthalene (NP), derivatives of naphthalene, anthracene or anthracene derivatives;

[0107] Among them; the derivatives of biphenyl can specifically be: biphenyl, dichlorobiphenyl, tetrachlorobiphenyl, terphenyl, x-methylbiphenyl, x-ethylbiphenyl, etc.;

[0108] Specifically, the derivatives of naphthalene can be: phenanthrene, dichloronaphthalene, tetrachloronaphth...

Embodiment 3

[0113] The embodiment of the present invention also provides a room-temperature chargeable liquid metal battery made of liquid metal negative electrode material. The negative electrode material of the battery is the liquid metal negative electrode material described in Example 1 above, which can be prepared by the method described in Example 2 above.

[0114] In addition, the liquid metal battery that can be charged and discharged at room temperature provided in this embodiment also includes:

[0115] One of the liquid cathode materials or slurry cathode materials, and an ion-conducting, electronic-insulating solid electrolyte membrane;

[0116] Wherein, the solid electrolyte includes Na for conducting sodium ions, lithium ions or potassium ions 3 Zr 2 Si 2 PO 12 Ceramics, Na-β″-Al 2 o 3 Ceramic, K-β″-Al 2 o 3 Ceramic, Li 7 La 3 Zr 2 o 12 Ceramic or Li 10 GeP 2 S 12 Any kind of ceramic.

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Abstract

The invention discloses a liquid metal anode material, a room-temperature liquid metal battery, and a preparation method and an application. The anode material is a black green liquid which is formed by mixing alkali metal, an aromatic compound and an ether solvent, wherein the alkali metal is any one of metal sodium, metal lithium or metal potassium; and the aromatic compound is any one of biphenyl, derivatives of the biphenyl, naphthaline, derivatives of the naphthaline and anthracene or derivatives of the anthracene; and the ether solvent comprises one or more of glycol dimethyl ether, diethylene glycol dimethyl ether or tetraethylene glycol dimethylether and the like.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a liquid metal negative electrode material, a room temperature liquid metal battery, a preparation method and an application. Background technique [0002] With the depletion of traditional fossil energy and the increasingly prominent environmental problems, it is imminent to develop and utilize renewable energy such as solar energy and wind energy. However, due to the instability and intermittency of solar and wind energy, the power grid is unstable, so it is necessary to vigorously develop large-scale energy storage technology. Large-scale energy storage technology can effectively solve the problem of intermittent power supply from renewable energy sources such as solar energy and wind energy, realize demand management, eliminate peak and valley differences between day and night, and smooth loads. [0003] At present, the main large-scale energy storage technologies include ...

Claims

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Application Information

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IPC IPC(8): H01M4/136H01M4/137H01M4/1399H01M4/1397
CPCH01M4/04H01M4/13Y02E60/10
Inventor 胡勇胜余觉知褚赓李泓黄学杰陈立泉
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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