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Novel lithium/carbon fluoride battery

A fluorocarbon battery, a new type of technology, applied in battery electrodes, non-aqueous electrolyte batteries, circuits, etc., can solve the problems of poor electronic conductivity and low voltage platform of fluorocarbon, achieve reduced electrical conductivity, increase working voltage, The effect of improving the discharge capacity

Inactive Publication Date: 2018-05-18
GUIZHOU MEILING POWER SUPPLY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention intends to propose a new type of lithium / carbon fluoride battery, which uses a new type of fluorinated Ketjen black as the positive electrode to solve the problems of low voltage platform and poor electronic conductivity of the existing carbon fluoride as the positive electrode material

Method used

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  • Novel lithium/carbon fluoride battery
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Embodiment 1

[0016] Example 1: First prepare fluorinated Ketjen black slurry, add fluorinated Ketjen black (fluorinated graphite), conductive agent, and binder to the solvent at intervals of 30 minutes according to a certain ratio, and stir for 2 minutes to obtain fluorinated Ketjen black Black (graphite fluoride) paste.

[0017] The fluorinated Ketjen black (fluorinated graphite) slurry was uniformly coated on a 15 μm thick aluminum current collector to obtain a positive electrode sheet. The content of fluorinated ketjen black is 88%, the type of the conductive agent is conductive carbon black or carbon nanotube, and the total content of the conductive agent is 5%. The kind of binder is styrene-butadiene rubber and sodium carboxymethyl cellulose, and the content is 7%.

[0018] The negative electrode is formed by rolling a current collector and a lithium strip, the current collector is nickel foam welded with lead strips, and the thickness of the lithium foil is 200 μm.

[0019] Assembl...

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Abstract

The invention discloses a novel lithium / carbon fluoride battery in the technical field of a battery. The novel lithium / carbon fluoride battery comprises an anode, a cathode, a diaphragm and electrolyte; the active component of the anode is fluoridate black, and the anode further comprises binding agent, conductive agent and anode carrier; the cathode comprises metal lithium and a cathode carrier;the diaphragm is PP / PE composite film or PI film; the electrolyte is lithium hexafluorophosphate. The novel carbon fluoride battery uses fluoridate black as anode material, so its excellent conductivity and corrected potential of the fluoridate black are used; when the battery discharges, the inner resistance is small, the polarization phenomenon is reduced, and the battery discharge ability is obviously improved. Therefore, the novel lithium / carbon fluoride battery can provide primary battery with high voltage platform and big energy density; the novel lithium / carbon fluoride battery is significant to extend the service life of mini type medical treatment devices and electronic products in a human body, and has very good commercial value.

Description

technical field [0001] The invention belongs to the technical field of batteries, in particular to a novel lithium / carbon fluoride battery. Background technique [0002] Lithium primary batteries have the advantages of high specific energy, wide operating temperature range, low self-discharge, long storage life, etc., and are widely used in instrumentation, electronic products, micro medical equipment and other fields. Lithium primary batteries currently in practical use mainly include lithium / manganese dioxide batteries, lithium / thionyl chloride batteries, lithium / carbon fluoride batteries, etc. In the solid cathode primary lithium battery, the theoretical mass specific energy of the lithium / carbon fluoride battery is the highest in the solid cathode series, about 2190Wh / kg (the specific energy of the lithium / thionyl chloride battery is 1470Wh / kg, the lithium / carbon dioxide The specific energy of the manganese battery is 1005Wh / kg). Since the fluorinated carbon material i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M6/14H01M4/583
CPCH01M6/14H01M4/5835
Inventor 万伟华张亮陈铤张红梅王庆杰贺焰张云朋杨程响
Owner GUIZHOU MEILING POWER SUPPLY CO LTD
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