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Lithium alloy-skeleton carbon composite, preparation method thereof, anode and lithium battery

A carbon composite material, lithium alloy technology, applied in battery electrodes, secondary batteries, electrode carriers/current collectors, etc., can solve the problems of difficult mass production, complex processing, etc., to reduce surface energy, easy to composite, improve load The effect of lithium

Inactive Publication Date: 2019-02-05
CHINA ENERGY CAS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method requires complex processing by CVD, and it is difficult to mass-produce in a short time

Method used

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  • Lithium alloy-skeleton carbon composite, preparation method thereof, anode and lithium battery
  • Lithium alloy-skeleton carbon composite, preparation method thereof, anode and lithium battery
  • Lithium alloy-skeleton carbon composite, preparation method thereof, anode and lithium battery

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0055] Embodiment 1 is a lithium alloy-skeleton carbon composite material, which includes a porous carbon material carrier and a lithium alloy formed on the surface and in the pores of the porous carbon material carrier.

specific Embodiment approach 2

[0056] Specific embodiment 2 is the lithium alloy-skeleton carbon composite material according to specific embodiment 1, wherein the lithium alloy is composed of metal lithium and selected from magnesium, silicon, boron, carbon, nitrogen, oxygen, fluorine, aluminum, phosphorus, Sulfur, chlorine, calcium, zinc, gallium, germanium, arsenic, selenium, bromine, ruthenium, rhodium, palladium, silver, cadmium, indium, tin, antimony, tellurium, iodine, iridium, platinum, gold, mercury, thallium, lead, Formed from one or more of bismuth and polonium.

specific Embodiment approach 3

[0057] Embodiment 3 is the lithium alloy-skeleton carbon composite material according to Embodiment 2, wherein when the lithium alloy is formed of metal lithium and another element, the weight percentage of lithium in the lithium alloy is 70% to 99.9% %.

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Abstract

The invention provides a lithium alloy-skeleton carbon composite, a preparation method thereof, an anode and a lithium battery. The lithium alloy-skeleton carbon composite comprises a porous carbon material carrier and lithium alloys formed on the surface and in pores of the porous carbon material carrier. According to the technical scheme, by compounding the lithium alloys and the skeleton carboncarrier, wettability of lithium metal to skeleton carbon can be effectively improved, thus the affinity between the lithium metal and the skeleton carbon is improved, and the lithium loading amount in a lithium material is increased.

Description

technical field [0001] The invention relates to the field of energy batteries. Specifically, the invention provides a lithium alloy-skeleton carbon composite material and a preparation method thereof, a negative electrode containing the lithium alloy-skeleton carbon composite material, and a lithium battery. Background technique [0002] Lithium-ion batteries, as a representative of clean energy, have been widely used in various fields of today's society. Lithium-ion batteries are favored by people because of their high energy density, environmental friendliness, and good cycle stability. However, with the development of society, the energy density of traditional lithium-ion batteries has been unable to meet people's increasing energy consumption requirements. In addition, the problem of environmental pollution is the biggest hot issue in today's society. The current social consensus is to develop clean energy to replace traditional petroleum energy. Therefore, the developm...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M4/64H01M4/66
CPCH01M4/64H01M4/661H01M4/663H01M4/665H01M10/0525H01M4/66Y02E60/10
Inventor 康拓陈立桅卢威沈炎宾王亚龙郭峰刘承浩陈鹏
Owner CHINA ENERGY CAS TECH CO LTD