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Aqueous lithium ion secondary battery and fabrication process thereof

A secondary battery and lithium-ion technology, applied in the field of water-based lithium-ion secondary batteries and its preparation process, can solve problems such as limited applications, achieve high specific capacity, reduce the probability of battery short circuit, and have high safety effects

Inactive Publication Date: 2018-11-02
CHANGZHOU YOUTEKE NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently used lithium-ion battery, because the electrolyte it uses is an organic solution, makes its safety greatly challenged, and thus limits its application in power, large-scale energy storage and other fields

Method used

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  • Aqueous lithium ion secondary battery and fabrication process thereof

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Embodiment Construction

[0018] See figure 1 , the present invention has a kind of water system lithium ion secondary battery, has positive electrode 1, diaphragm 3 and negative electrode 2 to form electric core, and described electric core is fixed in the battery case, is positioned at the sealing space in described battery case and injects electrolyte solution 4. The positive electrode 1 is connected to the positive terminal of the battery casing part, and the negative electrode 2 is connected to the negative terminal of the battery casing part; it is characterized in that: the current collector of the positive electrode 1 is a graphite plate, and the current collector of the negative electrode 2 is copper Foil or graphite plate, the active material of the negative electrode 2 is a metal active material. The active material of the negative electrode 2 is metallic zinc or a mixture of metallic zinc and zinc oxide. The electrolyte is an aqueous compound solution containing divalent zinc ions. The el...

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Abstract

The invention relates to an aqueous lithium ion secondary battery. The aqueous lithium ion secondary battery is provided with a positive electrode, a separator and a negative electrode forming a battery cell, the battery cell is fixed in a battery shell, an electrolyte is injected to a sealing space arranged in the battery shell, the positive electrode is connected with a positive terminal of a battery shell part, the negative electrode is connected with a negative terminal of the battery shell part, a current collector of the positive electrode is a graphite plate, a current collector of thenegative electrode is a copper foil or a graphite plate, and an active substance of the negative electrode is a metal active substance. The secondary battery is high in safety and specific capacity, the short-circuit probability of the battery is greatly reduced, and meanwhile, the aqueous lithium ion secondary battery can be applied to the field of energy storage on a large scale.

Description

technical field [0001] The invention relates to a secondary battery, in particular to a water-based lithium ion secondary battery and a preparation process thereof. Background technique [0002] With its excellent electrochemical performance and high specific capacity, lithium-ion secondary batteries have become the absolute main secondary batteries in the civilian application market, and their applications in power applications and large-scale backup energy storage are also being vigorously developed. . However, the currently used lithium-ion battery, because the electrolyte it uses is an organic solution, poses a great challenge to its safety, which limits its application in power, large-scale energy storage and other fields. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned problems, and provide an aqueous lithium-ion battery that does not use an organic electrolyte, and a water-based lithium-ion secondary battery w...

Claims

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Application Information

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IPC IPC(8): H01M10/36H01M10/38
CPCH01M10/36H01M10/38Y02E60/10Y02P70/50
Inventor 宋永江
Owner CHANGZHOU YOUTEKE NEW ENERGY TECH