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Non-aqueous electrolyte battery

A non-aqueous electrolyte and battery technology, applied in the direction of non-aqueous electrolyte batteries, non-aqueous electrolyte batteries, secondary batteries, etc., can solve insufficient problems, achieve low impedance, suppress voltage drop, and excellent pulse discharge characteristics

Inactive Publication Date: 2007-12-05
TOSHIBA BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008]However, even with these improvements, it is still insufficient for applications such as pulse discharge where current flows intensively at the initial stage of discharge, and further improvement is required so that continuous Sufficient operating voltage can also be obtained under the harsh conditions of use

Method used

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  • Non-aqueous electrolyte battery

Examples

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Embodiment 1

[0039] FIG. 1 shows cross-sectional views of batteries of Examples and Comparative Examples of the present invention. 1 is a cross-sectional view of an A-sized thionyl chloride-lithium battery using lithium as a negative electrode function material and thionyl chloride as a positive electrode function material.

[0040] In FIG. 1 , 1 is a stainless steel battery case with a diameter of 16 mm also serving as a negative electrode connector, and a cylindrical negative electrode 2 is pressed on the inner peripheral surface of the battery case. 3 is a porous carbon positive electrode body, which is formed as follows: 45% by mass of acetylene carbon black, 45% by mass of furnace black, 10% by mass of polytetrafluoroethylene and a mixed solution of water and ethanol are kneaded together, and the mixture is formed on a positive electrode assembly with a diameter of 10 mm and a height of 35 mm. The surroundings of the electrode 7 were vacuum-dried at 150° C. for 8 hours. The above-men...

Embodiment 2

[0046] A battery was produced in the same manner as in Example 1, except that a Li-Ga alloy containing 0.25 atomic % of Ga was used as the negative electrode.

Embodiment 3

[0059] A battery was fabricated in the same manner as in Example 1, except that a Li—Zn alloy containing 0.1 atomic % of Zn was used as the negative electrode.

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Abstract

A non-aqueous electrolyte battery using an oxyhalide as an anodic action material, which can improve pulse discharge characteristics and provide a sufficient operating voltage. A non-aqueous electrolyte battery using an oxyhalide such as thionyl chloride, sulfuric chloride and phosphoryl chloride that are liquid at room temperature as an anodic action material, wherein, in place of a conventionally used metal lithium, a lithium alloy containing at least one kind of element selected from a group consisting of Zn, Ga, Cd, In, Sn, Sb and Bi is used as a cathode to thereby reduce the impedance of a battery and prevent a reduction in operating voltage at pulse discharging, Especially, a battery is obtained that gives a significant improvement effect at high temperature and is excellent in pulse discharge characteristics having long discharge duration days.

Description

technical field [0001] The present invention relates to a nonaqueous electrolyte battery using a liquid acting substance and an electrolyte, and more specifically, to a nonaqueous electrolyte battery with improved pulse discharge characteristics. Background technique [0002] So-called non-aqueous electrolyte batteries that use metal lithium as the negative electrode substance and thionyl chloride, sulfuryl chloride, phosphorus oxychloride, and other oxyhalides that are liquid at room temperature as the positive electrode substance have high energy density and excellent storage characteristics. , The wide operating temperature range is widely used as a power supply for memory power failure protection of industrial equipment. [0003] In this battery, a lithium halide formed by a reaction with a positive electrode substance is deposited on the surface of metal lithium serving as a negative electrode, thereby forming a protective coating that prevents excessive reaction betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/14H01M4/06C22C24/00H01M4/40
CPCH01M4/368Y02E60/122H01M4/405H01M4/40H01M4/60H01M4/36H01M10/052H01M10/0563C22C24/00H01M6/14Y02E60/10H01M4/06
Inventor 铃木正美花房聪一加纳幸司
Owner TOSHIBA BATTERY
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