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Lithium ion battery anode

a technology of lithium ion batteries and anodes, which is applied in the manufacture of final products, cell components, electrochemical generators, etc., can solve the problems of reducing the conductivity and specific capacity of anodes

Inactive Publication Date: 2013-05-02
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a method for making a lithium ion battery anode without using adhesive. The method involves using carbon nanotubes as a material for the anode, and depositing the carbon nanotubes onto an anode material using a solvent with ultrasonic waves. The resulting anode does not have any adhesive, which improves its conductivity and specific capacity. The technical effect of this method is to provide a more efficient and effective lithium ion battery anode.

Problems solved by technology

Thus, the adhesive would decrease the conductivity and specific capacity of the anode.

Method used

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Embodiment Construction

[0015]The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “another,”“an,” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.

[0016]Referring to FIG. 1, a method for making a lithium ion battery anode according to one embodiment is provided. The method includes the following steps:

[0017]S1: making a carbon nanotube source including a number of carbon nanotubes;

[0018]S2: providing an anode material including a number of anode material particles and a solvent;

[0019]S3: adding the carbon nanotube source and the anode material into the solvent, and shaking the solvent with the carbon nanotube source and the anode material with ultrasonic waves; and

[0020]S4: separating the carbon nanotube source and the anode material from the solvent to obtain a lithium ion batte...

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Abstract

A lithium ion battery anode for a lithium ion battery is provided. The lithium ion battery anode includes a number of anode material particles. The lithium ion battery anode also includes a number of carbon nanotubes. The carbon nanotubes are entangled with each other. The carbon nanotubes form a net structure.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims all benefits accruing under 35 U.S.C. §119 from China Patent Application No. 201110333505.6, filed on Oct. 28, 2011, in the China Intellectual Property Office, the contents of which are hereby incorporated by reference. The application is also related to copending applications entitled, “METHOD FOR MAKING LITHIUM ION BATTERY CATHODE”, filed **** (Atty. Docket No. US42563); “METHOD FOR MAKING LITHIUM ION BATTERY ANODE”, filed **** (Atty. Docket No. US42767).BACKGROUND[0002]1. Technical Field[0003]The present disclosure relates a lithium ion battery anode, particularly, to a carbon nanotube based lithium ion battery anode.[0004]2. Description of Related Art[0005]A typical lithium ion battery mainly includes a cathode, an anode, a separator, and an electrolyte. The anode usually includes anode material, conductive particles, and adhesive. The adhesive is used to bond the anode material and conductive particles togethe...

Claims

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Application Information

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IPC IPC(8): H01M4/66H01M4/131B82Y99/00
CPCH01M4/131H01M4/134H01M4/625Y02E60/122H01M4/13H01M4/139H01M10/0525Y02E60/10Y02P70/50
Inventor WANG, JIA-PINGLUO, SHUJIANG, KAI-LIFAN, SHOU-SHAN
Owner TSINGHUA UNIV