Lithium-ferrous disulfide disposable lithium cell electrolyte and its preparing method

A ferrous disulfide, electrolyte technology, applied in non-aqueous electrolyte batteries, organic electrolyte batteries and other directions, can solve the problems of difficult implementation, high price, complicated processing technology, etc., and achieves low cost, low price and simple production process. Effect

Inactive Publication Date: 2006-06-21
神工光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lithium iodide LiI is an expensive material, and the processing technology is relatively complicated and difficult to implement.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The organic solvents propylene carbonate (PC), dimethyl carbonate (DME), and dipentane (DOL) that remove impurities and moisture by distillation are formulated into mixed solvents according to the weight ratio of 1:1:1, and the very high purity is added 1M lithium perchlorate (LiClO 4) The electrolyte is fully dissolved to prepare the electrolyte, which is injected into the Li-FeS 2 A cylindrical AA lithium battery.

Embodiment 2

[0026] The organic solvent propylene carbonate (PC), dimethyl carbonate (DME), dipentane (DOL) that removes impurity and moisture by distillation is formulated into a mixed solvent according to the weight ratio of 5:3:2, and the very high purity is added 1.2M lithium perchlorate (LiClO 4 ) The electrolyte is fully dissolved to prepare the electrolyte, which is injected into the Li-FeS 2 A cylindrical AA lithium battery.

Embodiment 3

[0028] The organic solvent propylene carbonate (PC), dimethyl carbonate (DME), dipentane (DOL) that removes impurity and moisture by distillation is formulated into a mixed solvent according to the weight ratio of 5:3:2, and the very high purity is added 0.2M lithium perchlorate (LiClO 4 ) The electrolyte is fully dissolved to prepare the electrolyte, which is injected into the Li-FeS 2 A cylindrical AA lithium battery.

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PUM

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Abstract

The preparation method for an one-use Li-FeS2 cell electrolyte comprises: selecting organic solvents of PC, DME and DOL with weight share as 0.5~5:0.5~3:0.5~2 to prepare mixed solvent, distilling to remove impurity and water; adding 0.1~2M / L LiClO4 or LiPF6 both high-temperature treated at 80~120Deg and 0.1~10% LiCl as electrolyte into the said mixed solvent on sealed dry condition to dissolve fully; pouring into assembled one-use cylinder Li-FeS2 cell. This invention has well charge / discharge property with low cost, super heavy load property, 4-10 times to 1.5V Zn-MnO2 alkaline cell in capacity.

Description

technical field [0001] The invention relates to a disposable lithium battery, in particular to a lithium (Li)-iron disulfide (FeS 2 ) An electrolyte material for a primary lithium battery and a preparation method thereof. Background technique [0002] In recent years, in order to meet the needs of the development of electronic equipment, especially digital cameras, MP3, MD, medical equipment and other electrical appliances, the requirements for batteries as a necessary item are getting higher and higher, including low prices, superior performance, Tiny size and so on. [0003] Several domestic 1.5VLi-FeS 2 Manufacturers of primary cylindrical lithium batteries generally use propylene carbonate (PC), dimethyl carbonate (DMC), ethylene carbonate (EC), diethyl carbonate (DEC), diethanol dimethyl ether (DME) or dioxin Pentane (DOL) organic solvent or mixture is used as the electrolyte solvent, and lithium iodide (LiI) is used as the electrolyte. L...

Claims

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Application Information

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IPC IPC(8): H01M6/16
CPCY02E60/10
Inventor 李青海
Owner 神工光电科技有限公司
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