Active electrolyte double V lithium polymerization cell

A technology for electrolytes and lithium batteries, applied in secondary batteries, circuits, electrical components, etc., can solve problems affecting electrode materials, flammability and explosion, and low lithium ion conductivity

Inactive Publication Date: 2007-01-10
黄穗阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common disadvantage of these two organic electrolytes is that ① the lithium ion conductivity is low, only 10 -3 S / cm not only affects the capacity of the electrode material, but also has poor low-temperature performance and high-current charge and discharge; ②The organic flux used in the organic electrolyte has a low flash point temperature, is flammable and explosive, and is a lithium-ion battery. One of the important reasons for safety accidents; ③ The organic electrolyte in the existing lithium-ion battery is an inactive material, which is only a lithium ion channel between the positive electrode and the negative electrode, neither providing lithium ions nor changing valence ions

Method used

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  • Active electrolyte double V lithium polymerization cell
  • Active electrolyte double V lithium polymerization cell
  • Active electrolyte double V lithium polymerization cell

Examples

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example 1

[0050] The following method was used to produce a wound double V lithium battery.

[0051] Manufacturing method of negative electrode belt:

[0052] 1200 grams of amorphous tin oxide lithium composite material (SnLi ρ P  B χ o ψ ) powder with 15 grams of acetone black and 15 grams of graphite powder in a ball mill drum mixer after dry powder mixing, then add 55 grams of Li 2 O as a catalyst, followed by dry powder mixing. Then add 200 grams of polyvinyl chloride PVC emulsion. After stirring uniformly at low speed and standing for degassing in a rotary vane mixer, a slurry-like negative electrode slurry is prepared. Roll the negative electrode slurry on both surfaces of a 20 micron thick nickel mesh. Dry at a constant temperature of 100°C. The thickness of the electrode strip after rolling is controlled at 100±5 microns. A nickel lead was then spot welded to the uncoated starting nickel mesh.

[0053] Manufacturing method of positive electrode belt:

[0054] 2000 g ...

example 2

[0065] The following method is used to produce laminated gel-state double V lithium batteries.

[0066] Manufacturing method of negative electrode sheet:

[0067] After mixing 1000 grams of graphite powder and 20 grams of acetone black in a ball mill drum mixer, add 80 grams of Li 2 O as a catalyst, followed by dry powder mixing. Then add 150 grams of polyvinyl chloride PVC emulsion. After stirring uniformly at low speed and standing for degassing in a rotary vane mixer, a slurry-like negative electrode slurry is prepared. Roll the negative electrode slurry on both surfaces of a 30 micron thick nickel mesh. Dry at a constant temperature of 100°C. The thickness of the electrode sheet after rolling is controlled at 90±5 microns. Die the negative electrode sheet into a kitchen knife shape: the area of ​​the main knife is 126×186mm 2 Dimensions, handle area is 7×10mm 2 Size, the knife handle part is uncoated nickel mesh, in the subsequent process, the knife handle parts of ...

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Abstract

Electrochemical reaction of the new type secondary lithium ion battery includes two sets of mechanism: (1) electrolyte is active material of containing active ions with variational valence; under action of catalyst, active ions in electrolyte generate change of reversible chemical valence on surfaces of positive and negative poles so as to release or absorb electrons; (2) lithium ions do movement in pendulum clock type between positive and negative poles, and M chemical valence of active ions at positive pole is changed as well. The two parts of electrochemical reaction can be taken place at same time, or taken place successively as changed dependent on different charging and discharging conditions. Comparing with current lithium ion battery, the disclosed battery can raise 60% discharge capacity. Energy density of weight reaches to 280Wh / kg, and energy density of volume reaches to 740Wh / kg.

Description

technical field [0001] The invention relates to the working principle, structural design and preparation method of a novel lithium ion battery. This new lithium-ion battery is called an active electrolyte double-V lithium-polymer battery, or double-V lithium battery for short. The letter V stands for Valence in English. The double V lithium battery provided by the present invention has two sets of active variable valence ions, which can greatly increase the discharge capacity and energy density of the battery. Background technique [0002] The rechargeable batteries (secondary batteries or storage batteries) widely used in modern mobile electronic equipment and communication equipment have gone through three generations of development: the first generation is nickel-cadmium batteries (weight specific energy density 50Wh / kg), the second The first generation is nickel-metal hydride batteries (weight specific energy density 80Wh / kg), and the third generation is lithium-ion bat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/38H01M10/40H01M10/0525H01M10/0565
CPCY02E60/122Y02E60/10
Inventor 黄穗阳
Owner 黄穗阳
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