Positive electrode of lithium-thionyl chloride energy type battery and preparation method thereof and lithium-thionyl chloride energy type battery

A thionyl chloride and energy-based technology, which is applied in the field of lithium-thionyl chloride energy-based batteries, can solve the problems of large differences in electrical performance and battery environmental adaptability to be improved, and achieve heat reduction, high oil absorption value, and high absorption. The effect of liquid ability

Active Publication Date: 2019-01-29
武汉中原长江科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to incomplete statistics, ER14/ER18, the battery model with a small diameter, the horizontal discharge capacity of the battery is about 90% of the vertical discharge capacity; ER34, the battery model with a large diameter, the b

Method used

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  • Positive electrode of lithium-thionyl chloride energy type battery and preparation method thereof and lithium-thionyl chloride energy type battery

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Embodiment 1

[0031] This embodiment provides a positive electrode of a lithium-thionyl chloride energy battery, the positive electrode material comprises acetylene black, 60wt% polytetrafluoroethylene emulsion, conductive carbon black super-p, absolute ethanol, and deionized water, wherein The weight ratio of the acetylene black, polytetrafluoroethylene emulsion, conductive carbon black super-p, absolute ethanol and deionized water is 10:2.1:0.8:15:32.

[0032] The conductive carbon black super-p is ultrasonically treated with acetone in advance, then dried, and passed through a 20-mesh sieve. The conductive carbon black super-p is in powder form, with a particle diameter of 40nm-60nm. The iodine absorption value of conductive carbon black super-p is 50mg / g~70mg / g, and the oil absorption value is 280ml / 100g~330ml / 100g.

[0033] This embodiment also provides a preparation method for the positive electrode of the lithium-thionyl chloride battery, comprising the following steps:

[003

Embodiment 2

[0041] This embodiment provides a positive electrode of a lithium-thionyl chloride energy battery, the positive electrode material comprises acetylene black, 60wt% polytetrafluoroethylene emulsion, conductive carbon black super-p, absolute ethanol, and deionized water, wherein The weight ratio of the acetylene black, polytetrafluoroethylene emulsion, conductive carbon black super-p, absolute ethanol and deionized water is 10:1.8:1.0:18:28.

[0042] The conductive carbon black super-p is ultrasonically treated with acetone in advance, then dried, and passed through a 20-mesh sieve. The conductive carbon black super-p is in powder form, with a particle diameter of 40nm-60nm. The iodine absorption value of conductive carbon black super-p is 50mg / g~70mg / g, and the oil absorption value is 280ml / 100g~330ml / 100g.

[0043] This embodiment also provides a preparation method for the positive electrode of the lithium-thionyl chloride battery, comprising the following steps:

[004

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Abstract

The invention discloses a positive electrode of a lithium-thionyl chloride energy type battery, a preparation method thereof and the lithium-thionyl chloride energy type battery. The carbon positive electrode is composed of acetylene black, a polytetrafluoroethylene emulsion, a novel carbon material and a solvent, the mass ratio of the acetylene black to the polytetrafluoroethylene emulsion to thenovel carbon material to the solvent is 10: (1.8 to 2.1) ): (0.8-1.0): (45.5-48), and the carbon positive electrode is prepared by uniformly mixing the acetylene black, the polytetrafluoroethylene emulsion, the novel carbon material and the solvent through a low-speed and three-dimensional mixer by means of granulation and drying. The carbon positive electrode of the lithium-thionyl chloride energy type battery has improved liquid absorption capacity and liquid retention capacity, effectively solves the problem of capacity difference caused by the difference of electrolyte flow when the battery is arranged transversely and inverted, and improves the environmental adaptability of the battery.

Description

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Claims

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Application Information

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Owner 武汉中原长江科技发展有限公司
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