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Preparation method and application of deoxyribonucleic acid (DNA) double-helix carbon nano-fibre and preparation method of lithium ion battery anode material

A technology of nano-carbon fiber and lithium-ion battery, which is applied in the direction of battery electrodes, nanotechnology, nanotechnology, etc., can solve the problems of application limitations and staying in the research stage, and achieve the effect of improving the ability to resist damage and improving the comprehensive electrochemical performance

Active Publication Date: 2015-11-18
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Problems solved by technology

However, since helical carbon nanofibers cannot be mass-produced at present, their application is limited, and their application only stays in the research stage.

Method used

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  • Preparation method and application of deoxyribonucleic acid (DNA) double-helix carbon nano-fibre and preparation method of lithium ion battery anode material
  • Preparation method and application of deoxyribonucleic acid (DNA) double-helix carbon nano-fibre and preparation method of lithium ion battery anode material
  • Preparation method and application of deoxyribonucleic acid (DNA) double-helix carbon nano-fibre and preparation method of lithium ion battery anode material

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with specific embodiments.

[0030] The application of the DNA double-helix nano-carbon fiber in the lithium ion battery of the present invention is to apply the DNA double-helix nano-carbon fiber as the negative electrode material of the lithium-ion battery to the lithium-ion battery.

[0031] 1. The present invention prepares DNA double helical carbon nanofibers by the following method:

[0032] 1) Take an appropriate amount of catalyst precursor copper tartrate in a porcelain boat, then place the porcelain boat in a quartz tube with good airtightness, and inject Ar gas into the quartz tube at a speed of 60mL / min to exhaust the Air;

[0033] 2) Heat the quartz tube from room temperature to 210°C, and then keep it at this temperature for 30 minutes;

[0034] 3) After the heat preservation in step 2), raise the temperature of the quartz tube to 580°C, and then heat it at this temperature fo...

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Abstract

The invention discloses a preparation method and an application of a deoxyribonucleic acid (DNA) double-helix carbon nano-fibre and a preparation method of a lithium ion battery anode material. The preparation method of the lithium ion battery anode material comprises the following steps: (1) grinding, namely dissolving a binder into deionized water, fully stirring the binder to obtain a binder solution, grinding the binder solution, a conductive agent and the DNA double-helix carbon nano-fibre in a mortar, and obtaining a sizing agent for smearing; (2) evenly painting a copper foil with the prepared sizing agent and drying the sizing agent; (3) stamping the copper foil into a round electrode plate with a required dimension; and (4) putting the fabricated electrode plate into a battery cathode shell, putting the electrode plate into a vacuum drying oven, drying the electrode plate at 105 DEG C for 8 hours, taking out and weighing the electrode plate, putting the electrode plate into the drying oven again and drying the electrode plate for two hours, so as to obtain the completely dried lithium ion battery anode material. The battery anode material prepared by the method is applied to fabrication of a lithium ion battery; and the comprehensive electrochemical properties of the anode material can be greatly improved.

Description

technical field [0001] The invention relates to the improvement of lithium-ion batteries, specifically a preparation method of DNA double-helical nano-carbon fibers and its application in lithium-ion batteries, and also relates to the preparation of negative electrode materials for lithium-ion batteries, belonging to the technical field of lithium-ion batteries. Background technique [0002] With the widespread application of lithium-ion batteries in the social and economic system, more and more electronic technology products have put forward higher requirements for lithium-ion batteries. At present, the development trend of lithium-ion batteries is: lithium-ion batteries with high energy density, power batteries with high power density, and long-life energy storage batteries. However, the electrode material restricts the performance of the lithium-ion battery. The conductivity of the positive electrode material of the lithium-ion battery is relatively poor, and its conduc...

Claims

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Application Information

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IPC IPC(8): H01M4/583H01M4/1393H01M10/0525H01M4/62B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/1393H01M4/583H01M4/625H01M10/0525Y02E60/10
Inventor 陈建朱林英胥会聂松代文超金永中
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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