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Negative electrode material for zinc-manganese battery and preparation method of negative electrode material

A negative electrode material, zinc-manganese battery technology, applied in battery electrodes, negative electrodes, nanotechnology for materials and surface science, etc., can solve zinc-manganese battery capacity and cycle effect defects, reduce battery capacity and charge and discharge times , the influence of the conductivity of active materials and other issues, to ensure the activity, improve the use and cycle life, and improve the overall performance

Active Publication Date: 2021-05-28
GUANGZHOU ZHUOYUE ELECTRIC ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metals such as indium and bismuth are expensive, causing a large cost burden, and the zinc-manganese batteries prepared by them have defects in capacity and cycle effect
On the other hand, their performance is very sensitive to the conductivity of other auxiliary materials in their anodes. Polymers such as polytetrafluoroethylene only act as binders in the manufacture of battery anode materials, and the role is relatively simple. In addition, polymers The addition of ZnMn affects the conductivity of the active material of the zinc-manganese electromagnetic negative electrode, which further reduces the capacity and charge-discharge times of the battery.

Method used

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  • Negative electrode material for zinc-manganese battery and preparation method of negative electrode material

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Embodiment 1 The first aspect provides a kind of zinc-manganese battery negative electrode material, and raw material comprises following parts by weight: 65 parts of nano-zinc powder (average particle diameter 200nm), 5 parts of molybdenum disulfide (average particle diameter 400nm), silicon carbide ( Average particle diameter (400nm) 5 parts, 6 parts of carboxylated graphene quantum dots, 30 parts of modified carbon nanotubes.

[0046] In this embodiment, the modified carbon nanotubes are self-made, and the preparation method includes the following steps: (in parts by weight): (1) Take 1 part of carboxylated carbon nanotubes and add them to 200 parts of deionized water to form a mixed solution, and ultrasonically disperse 2 hours; (2) After the dispersion is complete, add 30 parts of tin chloride pentahydrate and 8 parts of citric acid to the mixed solution, stir and react for 2 hours; (3) heat up to 80 ° C, continue stirring for 21 hours, then heat up to 185°C, stop ...

Embodiment 2

[0053] The specific implementation of this embodiment is the same as that of Example 1, except that: 10 parts of carboxylated graphene quantum dots, 20 parts of modified carbon nanotubes

[0054] The negative electrode material for the zinc-manganese battery prepared in this example is denoted as T2.

Embodiment 3

[0056] The specific implementation of this example is the same as that of Example 1, except that: 50 parts of nano-zinc powder, 10 parts of molybdenum disulfide, and 10 parts of silicon carbide.

[0057] The negative electrode material for the zinc-manganese battery prepared in this example is denoted as T3.

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Abstract

The invention discloses a negative electrode material for a zinc-manganese battery. The negative electrode material comprises the following raw materials in parts by weight: 40-80 parts of a base material and 10-40 parts of a conductive carbon material. Through the synergistic effect of a base material compounded by nano zinc powder, molybdenum disulfide and silicon carbide and a conductive carbon material compounded by carboxylated graphene quantum dots and modified carbon nanotubes, the overall capacitance, conductivity and cycle performance of the battery are effectively improved, the service life of the zinc-manganese battery is obviously prolonged, and the negative electrode material is suitable for being popularized in the field of batteries, and has a wide development prospect.

Description

technical field [0001] The invention relates to the field of zinc-manganese batteries, in particular to a negative electrode material for zinc-manganese batteries and a preparation method thereof. Background technique [0002] At present, more and more portable multi-function electronic products with high power consumption are entering the market, such as digital cameras, electric toothbrushes, electric shavers, flashlights and remote control electric toys and so on. Consumers need to choose high-power and large-capacity batteries to meet their usage requirements. It is difficult for ordinary carbon batteries to meet the performance requirements of high-power-consuming electronic products. Although lithium batteries have high capacity and high current performance, due to the use of anhydrous organic electrolyte, flammable and explosive battery accidents often occur, and the price is expensive, so most consumers do not choose this disposable lithium battery. too much. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/42H01M6/04B82Y30/00
CPCH01M4/42H01M4/625H01M4/628H01M6/04B82Y30/00H01M2004/027Y02E60/10
Inventor 李思睿李政文王瀚民黎少伟
Owner GUANGZHOU ZHUOYUE ELECTRIC ENERGY TECH CO LTD
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