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Lithium carbon fluoride-supercapacitor quick response composite battery

A lithium fluorocarbon battery and supercapacitor technology, which is applied in the field of lithium fluorocarbon-supercapacitor fast-response composite batteries, can solve the problem of voltage lag, unsatisfactory battery comprehensive performance, and inability to realize fast-response use of lithium fluorocarbon batteries, etc. problem, to achieve the effect of eliminating low-wave voltage and extending low-temperature operating temperature

Active Publication Date: 2020-06-02
GUIZHOU MEILING POWER SUPPLY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Although the discharge performance of carbon fluoride cathode materials has been improved by means of structure improvement and surface modification in the prior art, the focus of the above documents is on the improvement of carbon fluoride cathode materials, although the battery has been improved to a certain extent High rate discharge performance, but after long-term storage, there is still voltage hysteresis due to negative electrode passivation, and it is impossible to realize the rapid response of lithium fluoride batteries.
At present, in terms of improving the performance of lithium fluoride batteries, only certain measures are taken for the battery itself, which leads to the unsatisfactory overall performance of the battery, and lacks the combination of different electrochemical devices to improve the performance of the battery. There is no relevant report on the use in combination with capacitors

Method used

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  • Lithium carbon fluoride-supercapacitor quick response composite battery
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  • Lithium carbon fluoride-supercapacitor quick response composite battery

Examples

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Effect test

Embodiment 1

[0041]A lithium fluoride carbon-supercapacitor fast-response composite battery, the lithium fluoride carbon battery positive pole fluorinated graphite and fluorinated graphene, the ratio is 9:1, the negative pole metal lithium alloy (lithium content is 90%), the capacity 1Ah, the working voltage range is 1.5V~4.0V; the positive electrode material of the supercapacitor is activated carbon and manganese dioxide, the ratio is 9:1, the negative electrode is activated carbon, the capacity is 50F, and the working voltage range is 0.1V~2.7V. The positive electrode of the carbon dioxide battery is connected to the positive electrode of the supercapacitor, and the negative electrode is connected correspondingly, and then electrically connected to the output terminal of the positive electrode and the output terminal of the negative electrode respectively, and then packaged in an aluminum-plastic film case to prepare a lithium fluoride carbon-supercapacitor fast-response composite battery ...

Embodiment 2

[0043] The difference from Example 1 is that the positive pole of the lithium carbon fluoride battery is fluorinated graphite and fluorinated graphene, the ratio is 9:1, the negative pole is a metal lithium alloy (lithium content is 90%), the capacity is 1Ah, and the working voltage range 1.5V~4.0V; the supercapacitor positive electrode material is activated carbon and manganese dioxide, the ratio is 9:1, the negative electrode is activated carbon, the capacity is 100F, and the working voltage range is 0.1V~2.7V.

Embodiment 3

[0045] The difference from Example 1 is that the positive pole of the carbon fluoride lithium battery is fluorinated graphite and fluorinated graphene, the ratio is 6:4, the negative pole is a metal lithium alloy (lithium content is 90%), the capacity is 1Ah, and the working voltage range 1.5V~4.0V; the positive electrode material of supercapacitor is activated carbon and manganese dioxide, the ratio is 9:1, the negative electrode is activated carbon, the capacity is 50F, and the working voltage range is 0.1V~2.7V.

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Abstract

The invention relates to the technical field of chemical power supplies, in particular to a lithium carbon fluoride-supercapacitor quick response composite battery, which comprises an aluminum-plasticfilm shell, a lithium carbon fluoride battery, a supercapacitor, a positive electrode output end and a negative electrode output end, the lithium carbon fluoride battery is characterized in that thepositive electrode and the negative electrode of the lithium carbon fluoride battery are correspondingly connected with the positive electrode and the negative electrode of the supercapacitor respectively and output through the positive electrode output end and the negative electrode output end; and the lithium carbon fluoride battery and the supercapacitor are arranged in the aluminum-plastic film shell. The lithium carbon fluoride battery has the advantages that the rate capability of the lithium carbon fluoride battery is improved, meanwhile, the voltage lag phenomenon is overcome, and thefast response discharge of the battery is realized.

Description

technical field [0001] The invention relates to the technical field of chemical power sources, in particular to a fast-response lithium carbon fluoride-supercapacitor composite battery. Background technique [0002] Batteries are one of the important components of the current new energy industry, and are an important part of the energy supply of electronic products and equipment. With the rapid development of equipment technology, the requirements for specific energy and specific power characteristics of batteries are getting higher and higher, especially for lithium batteries. primary battery. However, the power performance of lithium primary batteries is poor, and they are basically used when discharging below 0.1C. When discharging at medium and high rates (0.2C~3C), the voltage hysteresis is serious, which limits the use of batteries. [0003] Lithium fluoride carbon battery has a high specific energy, reaching 2180Wh / kg, which is currently the system with the highest t...

Claims

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Application Information

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IPC IPC(8): H01M12/00H01M6/14
CPCH01M6/14
Inventor 张亮杨林江廖敏会苏纪宏陈晓涛石斌魏俊华
Owner GUIZHOU MEILING POWER SUPPLY CO LTD