Lithium-thionyl chloride battery and production thereof

A thionyl chloride battery and battery cell technology, applied in the field of lithium batteries, can solve the problems of uneven dispersion of discharge products and small discharge current, and achieve the effects of avoiding overheating, increasing tolerance, and increasing safety and stability.

Active Publication Date: 2017-12-15
烟台科达石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low discharge current and uneven dispersion of discharge products in the existing lithium-thionyl chloride battery, the present invention provides a lithium-thionyl chloride battery and a preparation method thereof

Method used

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  • Lithium-thionyl chloride battery and production thereof
  • Lithium-thionyl chloride battery and production thereof
  • Lithium-thionyl chloride battery and production thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A lithium-thionyl chloride battery is characterized in that it includes a casing 5 and a core body, the core body includes a coating 1, a current collector 2, a filler 3 and an anode sheet 4, and the coating 1 is closed at one end and one end An open hollow column filled with the filler 3, the current collector 2 is a metal sheet 2-2 with a metal protrusion 2-1 on one side, and the metal protrusion 2-1 passes through the package The membrane 1 and the casing 5 form the positive pole of the lithium-thionyl chloride battery, the anode sheet 4 is airtightly connected to the opening end of the envelope 1, and the casing 5 is airtightly connected to the edge of the anode sheet 4, The exposed part of the anode sheet 4 forms the negative electrode of the lithium-thionyl chloride battery, and the other side of the current collector 2 is provided with several current collecting columns 2-3, and the composition of the current collecting columns 2-3 is nickel, the number There are...

Embodiment 2

[0035] A lithium-thionyl chloride battery is characterized in that it includes a casing 5 and a core body, the core body includes a coating 1, a current collector 2, a filler 3 and an anode sheet 4, and the coating 1 is closed at one end and one end An open hollow column filled with the filler 3, the current collector 2 is a metal sheet 2-2 with a metal protrusion 2-1 on one side, and the metal protrusion 2-1 passes through the package The membrane 1 and the casing 5 form the positive pole of the lithium-thionyl chloride battery, the anode sheet 4 is airtightly connected to the opening end of the envelope 1, and the casing 5 is airtightly connected to the edge of the anode sheet 4, The exposed part of the anode piece 4 forms the negative electrode of the lithium-thionyl chloride battery, and the other side of the current collector 2 is provided with a number of current collecting columns 2-3, and the composition of the current collecting columns 2-3 is titanium, the number The...

Embodiment 3

[0039] A lithium-thionyl chloride battery is characterized in that: it includes a casing 5 and a core body, the core body includes a coating 1, a current collector 2, a filler 3 and an anode sheet 4, and the coating 1 is closed at one end and one end An open hollow column filled with the filler 3, the current collector 2 is a metal sheet 2-2 with a metal protrusion 2-1 on one side, and the metal protrusion 2-1 passes through the package The membrane 1 and the casing 5 form the positive pole of the lithium-thionyl chloride battery, the anode sheet 4 is airtightly connected to the opening end of the envelope 1, and the casing 5 is airtightly connected to the edge of the anode sheet 4, The exposed part of the anode piece 4 forms the negative electrode of the lithium-thionyl chloride battery, and the other side of the current collector 2 is provided with a number of current collecting columns 2-3, and the composition of the current collecting columns 2-3 is platinum. There are 5 p...

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Abstract

The invention discloses a lithium-thionyl chloride battery. The lithium-thionyl chloride battery comprises a shell and a core body, the core body comprises a coating, a filler, a current collector and an anode plate, and a plurality of current collecting columns are uniformly distributed in the filler. The production method of the lithium-thionyl chloride battery comprises the following steps: preparing the filler, producing the battery core body, and assembling the battery. The uniformly distributed current collecting columns are arranged in the lithium battery core, so a precipitate generated during the discharge of the lithium battery is effectively dispersed to avoid the overheating phenomenon caused by product concentration, and the temperature tolerance of the lithium battery is improved to make the lithium battery applied to a high temperature environment; the porous carbon form characteristic of acetylene black is kept during the preparation of the filler in order to improve the conductive performances of a cathode carrier, and secondary compression molding is adopted to avoid the disadvantage of discharge product enrichment induced by too large carbon gaps; and the good uniformity of the filler can improve the electric conductivity in order to realizes heavy-current discharge or heavy-current pulse.

Description

technical field [0001] The invention relates to the field of lithium batteries, in particular to a lithium-thionyl chloride battery and a preparation method thereof. Background technique [0002] In recent years, with lithium-thionyl chloride (Li-SOCl 2 ) batteries are used in oil exploration and geological exploration, making high-temperature resistant lithium-thionyl chloride batteries have been greatly developed. The high-temperature resistant lithium-thionyl chloride battery gradually enters the ground with the downhole measuring instrument driven by the drill bit and drill pipe. It not only has to withstand higher and higher temperature tests, but also withstands the impact and vibration of the drill bit and drill pipe. According to the requirements of relevant standards, the battery components of the downhole while drilling must be able to withstand the environmental test of the temperature of -40 ° C ~ 200 ° C, and at the same time be able to withstand the vibration ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/16H01M4/08H01M4/78
CPCH01M4/08H01M4/78H01M6/16
Inventor 李华杨海燕庄雪峰
Owner 烟台科达石油科技有限公司
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