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Double-graphite-electrode battery

A graphite electrode and battery technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of high cost and unfriendly cathode materials, and achieve the effect of reducing production costs

Inactive Publication Date: 2020-01-07
DONGGUAN LILONG BATTERY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is: aiming at the deficiencies of the prior art, the present invention provides a dual graphite electrode battery to solve the problems that the existing positive electrode materials are unfriendly to the environment and high in cost. Environmentally friendly and inexpensive material

Method used

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  • Double-graphite-electrode battery
  • Double-graphite-electrode battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The negative plate uses graphite as the negative electrode active material, uses deionized water as the solvent of the negative electrode slurry, mixes and stirs 98% of the negative electrode active material, 1.0% of sodium carboxymethyl cellulose and 1.0% of styrene-butadiene rubber to form the negative electrode slurry , coating, rolling, and slitting to obtain negative electrode sheets.

[0025] The positive electrode sheet uses graphite as the negative electrode active material, uses deionized water as the solvent of the positive electrode slurry, mixes and stirs 98% of the positive electrode active material, 1.0% of sodium carboxymethyl cellulose and 1.0% of styrene-butadiene rubber to form the negative electrode slurry , coating, rolling, and slitting to obtain the positive electrode sheet.

[0026] In a glove box filled with argon (moisture content 6 , and stirred until it was completely dissolved to obtain the electrolyte solution of Example 1. The electrolyte ...

Embodiment 2

[0030] The negative plate uses graphite as the negative electrode active material, uses deionized water as the solvent of the negative electrode slurry, mixes and stirs 98% of the negative electrode active material, 1.0% of sodium carboxymethyl cellulose and 1.0% of styrene-butadiene rubber to form the negative electrode slurry , coating, rolling, and slitting to obtain negative electrode sheets.

[0031] The positive electrode sheet uses graphite as the negative electrode active material, uses deionized water as the solvent of the positive electrode slurry, mixes and stirs 98% of the positive electrode active material, 1.0% of sodium carboxymethyl cellulose and 1.0% of styrene-butadiene rubber to form the negative electrode slurry , coating, rolling, and slitting to obtain the positive electrode sheet.

[0032]In a glove box filled with argon (moisture 6 , and stirred until it was completely dissolved to obtain the electrolyte solution of Example 1.

[0033] Polyethylene (PE...

Embodiment 3

[0036] The difference from Example 2 is the preparation of the electrolyte.

[0037] In a glove box filled with argon (moisture 6 , and stirred until it was completely dissolved to obtain the electrolyte solution of Example 3.

[0038] The rest are the same as in Embodiment 2, and will not be repeated here.

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Abstract

The invention discloses a double-graphite electrode battery. The battery comprises a positive pole sheet, a negative pole sheet, an electrolyte and a diaphragm arranged between the positive pole sheetand the negative pole sheet at intervals; graphite or amorphous carbon coated graphite is adopted as the positive pole active material of the positive pole sheet; graphite or amorphous carbon coatedgraphite is adopted as the negative pole active material of the negative pole sheet; and the working voltage of the battery ranges from 4.5 V to 5.5 V. According to the double-graphite electrode battery, the graphite is adopted as the active material of the positive pole and negative pole; the graphite into which electrolyte salt anions can be embedded replaces a traditional positive pole material; and the electrolyte salt anions are embedded into the graphite positive pole under a high voltage, and lithium ions are embedded into the graphite negative pole, and therefore, a loop can be obtained, and the complete double-graphite battery can be obtained. The battery does not contain transition metal elements, is environment-friendly, can meet use requirements in the fields of solar energy, wind energy, tidal energy and the like; and the graphite is adopted as the active material of the battery, so that the manufacturing cost of the battery is effectively reduced.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a double graphite electrode battery. Background technique [0002] At present, lithium-ion batteries are mainly used in mobile electronic products and automotive battery markets, but due to their cycle life, safety, and cost deficiencies, they are widely used in more strategic markets, such as solar energy, wind energy, and tidal energy. , is not a very ideal choice. In these application scenarios, energy density is no longer the main concern. In contrast, the impact on the environment and cost control are the focus of this field. [0003] The transition metal is an indispensable element in the traditional lithium-ion battery, especially for the positive electrode material, the main choice of the positive electrode material is a transition metal oxide with reversible delithiation and lithium intercalation, such as the common LiCoO 2 , LiMn 2 o 4 and LiFePO 4 However, such ma...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M4/583H01M4/587H01M4/133H01M10/0567H01M10/0569H01M10/0587
CPCH01M4/133H01M4/583H01M4/587H01M10/0525H01M10/0567H01M10/0569H01M10/0587Y02E60/10Y02P70/50
Inventor 唐联兴郑正坤刘右军
Owner DONGGUAN LILONG BATTERY TECH CO LTD