Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of zinc ion rechargeable battery and its manufacturing method

A rechargeable battery, zinc ion technology, applied in electrode manufacturing, sustainable manufacturing/processing, secondary batteries, etc., can solve the problems of low utilization rate of active materials, uneven battery capacity, large current attenuation, etc., to improve high current characteristics, the effect of improving capacity and energy density, and improving cycle life

Active Publication Date: 2017-09-08
SHENZHEN CITY THROUGH SCI & TECH OF NEW ENERGY CO LTD
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an electrode material, manganese dioxide has the disadvantages of low conductivity and low utilization of active materials. In current zinc-ion rechargeable batteries, adding high-conductivity materials to the positive electrode to improve the conductivity of manganese dioxide will easily lead to large current attenuation. problem, and the problem of uneven capacity of different batteries
[0010] This battery has cheap features, but its capacity is too low, only 200mAh g -1 about

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of zinc ion rechargeable battery and its manufacturing method
  • A kind of zinc ion rechargeable battery and its manufacturing method
  • A kind of zinc ion rechargeable battery and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Graphene-loaded manganese dioxide preparation method is as follows: add 0.4 gram of graphene to 300 milliliters (mL) 0.1 moles per liter (mol L -1 ) in the manganese acetate aqueous solution, so that the graphene is evenly dispersed, and then 200mL0.1M L -1 The potassium permanganate aqueous solution is added in the manganese acetate solution, and stirred for 10 hours, so that the manganese dioxide is fully deposited and attached to the surface of the graphene, then the precipitate is filtered, washed with deionized water, and dried to obtain the graphene-loaded manganese oxide.

[0043] Graphene-loaded manganese dioxide powder, conductive agent carbon black and binder polyvinylidene fluoride are mixed in a mass ratio of 8:1:1 and coated on stainless steel foil, cut into a certain size, and placed in a vacuum Dry it into a graphene-loaded manganese dioxide electrode sheet. The prepared graphene-loaded manganese dioxide electrode sheet is used as the positive electrode...

Embodiment 2

[0045] In order to illustrate the synergistic effect of the carbon-supported manganese dioxide composite material and manganese ions in the electrolyte, the present invention assembled two other batteries to compare the effect of the synergistic effect on increasing the battery capacity. At first the present invention has prepared manganese dioxide powder according to the following method, put 200mL0.1M L -1 Add 300 milliliters (mL) of 0.1 moles per liter (mol L -1 ) in the manganese acetate aqueous solution, fully stirred for 10 hours, then filtered the precipitate, washed with deionized water, and dried to obtain the manganese dioxide powder. Mix manganese dioxide powder, conductive agent carbon black, and binder polyvinylidene fluoride in a mass ratio of 7:2:1, then coat it on stainless steel foil, cut it into a certain size, and dry it in a vacuum. Manganese dioxide electrodes. The manganese dioxide electrode sheet is used as the positive electrode, the 0.1mm thick zinc ...

Embodiment 3

[0048] The preparation method of carbon nanotube-loaded manganese dioxide is as follows: 0.6 gram of carbon nanotubes is added to 300 milliliters (mL) of 0.1 moles per liter (mol L -1 ) in the manganese acetate aqueous solution, so that the carbon nanotubes can be dispersed evenly, and then 200mL0.1ML -1 The potassium permanganate aqueous solution was added to the manganese acetate solution, and stirred for 10 hours, so that the manganese dioxide was fully deposited and attached to the surface of the carbon nanotubes, then the precipitate was filtered, washed with deionized water, and dried to obtain the carbon nanotubes loaded with manganese dioxide.

[0049] Mix carbon nanotube-loaded manganese dioxide powder, conductive agent carbon black, and binder polyvinylidene fluoride in a mass ratio of 8:1:1, then coat it on stainless steel foil, cut it into a certain size, and place it in a vacuum Dry in medium to make carbon nanotube-loaded manganese dioxide electrode sheet. The ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a zinc-ion rechargeable battery and a manufacturing method thereof. The battery includes a positive electrode, a negative electrode and an electrolyte, the active material of the negative electrode contains zinc, and the feature is that the active material of the positive electrode contains carbon dioxide Manganese composite material, wherein the carbon-supported manganese dioxide composite material refers to a material in which manganese dioxide is attached to the surface of a carbon material carrier. The carbon-supported manganese dioxide composite material is added to the positive electrode material of the zinc-ion battery, thereby improving the high-current characteristics of the battery, thereby improving the cycle life of the battery; the increased divalent manganese ions in the electrolyte are compounded with carbon-supported manganese dioxide The materials react synergistically, increasing the capacity of the battery.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of secondary batteries, in particular to a zinc ion rechargeable battery and a manufacturing method thereof. [0003] 【Background technique】 [0004] High-capacity and long-life rechargeable batteries are the cornerstone of our modern social life. No matter from mobile electronic devices to electric vehicles, high-capacity and long-life batteries are required to provide power. Therefore, it is very important to develop high-capacity rechargeable batteries. meaning. [0005] The rechargeable zinc-ion battery is a rechargeable battery that uses manganese oxide material as the positive electrode active material, zinc as the negative electrode active material, and an aqueous solution containing zinc ions as the electrolyte. This battery has the characteristics of being cheap, but its The capacity is too low, only 200~300mAh g -1 . It is well known that for batteries, having a high capacity is a prerequisite for...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/36H01M4/50H01M4/42H01M4/64H01M4/02H01M4/04
CPCH01M4/362H01M4/38H01M4/505H01M4/64H01M10/38H01M4/0404H01M4/366H01M4/663H01M4/42H01M4/50H01M4/622H01M4/623H01M10/36H01M2300/0002Y02E60/10Y02P70/50H01M4/583H01M4/624H01M2004/027H01M2004/028
Inventor 徐成俊陈彦伊史珊康飞宇
Owner SHENZHEN CITY THROUGH SCI & TECH OF NEW ENERGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com