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Manufacturing method of lithium battery capable of continuously providing high power

A manufacturing method and lithium battery technology, applied in the field of lithium batteries, can solve the problems of weakening the performance of lithium/thionyl chloride batteries, etc., and achieve the effects of good high current and discharge capacity, low material and manufacturing costs, and good open circuit voltage

Pending Publication Date: 2020-02-28
SUZHOU JINKEFA LITHIUM BATTERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the above methods can improve certain performances of lithium / thionyl chloride batteries to a certain extent, but some of them weaken the other properties of lithium / thionyl chloride batteries at the cost of "sacrificing" the capacity of lithium / thionyl chloride batteries. some performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A manufacturing method for a lithium battery that can sustainably provide high power, comprising the following steps: in a dry environment with a relative humidity of ≤1%, winding the cathode material of the lithium battery, the glass fiber separator, and the metal lithium anode together into a battery core , into the battery case, the battery core body, when winding, sequentially includes two layers of lithium battery cathode material, glass fiber diaphragm and two layers of metal lithium anode; then according to the current process, the battery ring seam is welded, the lithium The battery electrolyte is injected into the battery, and the holes are plugged and welded; finally, the lithium battery is stored in a hot air blast box with a temperature of 54°C for 40 hours to obtain a finished product; during the production process of the cathode material of the lithium battery, adding Mass ratio is the sodium sulfate of 0.06, makes the cathode material of the lithium batter...

Embodiment 2

[0019] A manufacturing method for a lithium battery that can sustainably provide high power, comprising the following steps: in a dry environment with a relative humidity of ≤1%, winding the cathode material of the lithium battery, the glass fiber separator, and the metal lithium anode together into a battery core , into the battery case, the battery core body, when winding, sequentially includes two layers of lithium battery cathode material, glass fiber diaphragm and two layers of metal lithium anode; then according to the current process, the battery ring seam is welded, the lithium The battery electrolyte is injected into the battery, and the holes are plugged and welded; finally, the lithium battery is stored in a hot air blast box with a temperature of 54°C for 50 hours to obtain a finished product; during the production process of the cathode material of the lithium battery, adding Mass ratio is the sodium sulfate of 0.09, makes the cathode material of the lithium batter...

Embodiment 3

[0023]A manufacturing method for a lithium battery that can sustainably provide high power, comprising the following steps: in a dry environment with a relative humidity of ≤1%, winding the cathode material of the lithium battery, the glass fiber separator, and the metal lithium anode together into a battery core , into the battery case, the battery core body, when winding, sequentially includes two layers of lithium battery cathode material, glass fiber diaphragm and two layers of metal lithium anode; then according to the current process, the battery ring seam is welded, the lithium The battery electrolyte is injected into the battery, and the holes are plugged and welded; finally, the lithium battery is stored in a hot air blast box with a temperature of 54°C for 45 hours to obtain a finished product; during the production process of the cathode material of the lithium battery, adding Mass ratio is the sodium sulfate of 0.08, makes the cathode material of the lithium battery...

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Abstract

The invention relates to a manufacturing method of a lithium battery capable of continuously providing high power. The method comprises steps that in a dry environment with the relative humidity of less than or equal to 1%, a cathode material of the lithium battery, a glass fiber diaphragm and a metal lithium anode are wound together to form a battery core body which is placed into a battery shell; then according to the process in the prior art, girth welding on the battery is performed, lithium battery electrolyte is injected into the battery, hole plugging and sealing welding are performed;and lastly, the lithium battery is placed into a hot air blast box with the temperature of 54 DEG C, and stored for 40-50 hours to obtain a finished product. In the production process of a cathode material of the lithium battery, sodium sulfate with the mass ratio of 0.06-0.09 is added, and the cathode material of the lithium battery containing the sodium sulfate is prepared; in the production process of the electrolyte material of the lithium battery, the sodium sulfate is added, the sodium sulfate is saturated in the electrolyte material of the lithium battery, and the electrolyte material of the lithium battery containing the sodium sulfate is prepared. The method is advantaged in that performance of the lithium battery can be greatly improved.

Description

【Technical field】 [0001] The invention relates to the technical field of lithium batteries, in particular to a manufacturing method for a lithium battery that can sustainably provide high power. 【Background technique】 [0002] Lithium / thionyl chloride (Li / SOCl 2 ) battery is a lithium as an anode, carbon as a cathode carrier, anhydrous lithium tetrachloroaluminate thionyl chloride (SOCl 2 ) solution as the lithium battery electrolyte. Lithium / thionyl chloride batteries have the characteristics of high specific energy, large specific power, stable discharge voltage, and long storage life. They are widely used in military and civilian industries such as aerospace, underwater weapons, navigation equipment, geological exploration, and instrumentation. application. Lithium / thionyl chloride battery is currently the battery with the highest specific energy and specific power in the battery field. [0003] The main problems of lithium / thionyl chloride batteries are voltage hyste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/052
CPCH01M10/4235H01M10/052Y02E60/10
Inventor 蒋长青张勇曾晓丰常周华远飞牟维茜潘勇陈嘉恒蔡志明肖辉
Owner SUZHOU JINKEFA LITHIUM BATTERY