Thin battery with longer life time

A technology of thin batteries and conductive materials, applied in dry batteries, printed batteries, battery electrodes, etc., can solve problems such as electrolyte volatilization

Inactive Publication Date: 2009-04-08
恩福塞尔公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The object of the present invention is an improved thin and flexible wet cell with longer life, which solves the above-mentioned problem of electrolyte volatilization in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The inventive effects of the present invention were tested by means of batteries of the following composition.

[0043] Battery configuration used in the tests:

[0044] Electrolyte: ZnCl 2

[0045] Cathode active material: MnO 2

[0046] Anode active material: Zn

[0047] Partition: paper

[0048] Encapsulation material: polymer film

[0049] Current collector: conductive ink

[0050] Binder: PVA and additives

[0051] Conductive material: graphite powder and varying amounts of carbon nanotubes

[0052] Example 1-4

[0053] Test cells were prepared by coating anode and cathode slurries on separator paper. Anode slurry comprising active anode material and comprising ZnCl 2 An aqueous electrolyte solution of electrolyte, PVA binder and other additives are coated on the release paper. A cathode slurry comprising a similar electrolyte solution was coated on another separator paper. The layers coated with the anode and cathode slurries are then laminated togeth...

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Abstract

The present invention relates to a thin battery with longer life time. The thin battery has an anode material and a cathode material applied as pastes on one or more separator paper layers there between. The battery also has an aqueous electrolyte solution, binders and additives. The cathode paste furthermore has conductive material at least partly of carbon nanotubes. The thin battery has an anode material and a cathode material applied as pastes on one or more separator paper layers there between. The battery also has an aqueous electrolyte solution, binders and additives. The cathode paste furthermore has a conductive material at least partly of carbon nanotubes. The conductive material can additionally have one or more other allotropes of carbon, such as carbon powder, e.g. graphite powder.

Description

technical field [0001] The present invention relates to a thin battery comprising an anode material and a cathode material and an electrolyte, the anode material and the cathode material being applied as a slurry on one or more layers of separator paper in between. The cathode paste also includes conductive materials. Background technique [0002] The basic components of a battery are electrodes with terminals connected to an external electrical circuit, separators that keep the electrodes separated and prevent them from short circuiting, an electrolyte that carries charged ions generated due to chemical reactions taking place at the electrodes, and holds the active chemicals and turns the electrodes Keep the enclosure in place. [0003] The chemical reactions that occur in the battery include oxidation and reduction reactions (redox reactions). Batteries fall into two broad categories, liquid batteries (ie, "wet" batteries), in which the electrolyte is liquid or wet, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M4/02H01M4/04
CPCY02E60/12B82Y30/00H01M4/0407H01M6/22H01M6/12H01M4/625H01M2/1673H01M50/46Y02P70/50H01M6/40H01M6/46H01M4/04C01B32/158C01B32/20
Inventor 张霞昌A·塔洛宁红燕
Owner 恩福塞尔公司
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