Negative electrode of lithium ion battery, and lithium ion battery

A lithium-ion battery and negative electrode technology, applied in battery electrodes, secondary batteries, circuits, etc., can solve the problems of long batching time and complex negative electrode process, and achieve the effect of increasing energy density and shortening batching time
CN102856531AInactive Publication Date: 2013-01-02SHENZHEN MEIBAI ELECTRONIC CO LTD
5 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN MEIBAI ELECTRONIC CO LTD
Publication Date
2013-01-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of lithium batteries, and in particular to a negative electrode of lithium ion battery, and a lithium ion battery. The copper foil or the aluminum foil is used as the substrate, the substrate is coated by slurry and prepared into the negative electrode end product of the lithium ion battery, and the slurry is a novel high-performance negative electrode aqueous formula comprising effective solid components and liquid components; the formula comprises the following effective solid components by weight percent: 47.04%-56.26% of negative electrode active substance, 0.98%-1.74% of polyacrylonitrile type aqueous conductive adhesive and 0.24%-0.86% of conductive agent, wherein the negative electrode active substance is graphite; and the liquid components comprise 36.36%-51.01% of deionized water, 0.01%-2.81% of N-methyl pyrrolidinone and 0.01%-2.81% of defoamer. According to the negative electrode of lithium ion battery and the lithium ion battery provided by the invention, the energy density, the rate capability and the cycle performance of the lithium ion battery can be improved obviously, and the time for preparing materials also can be reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of lithium ion batteries, in particular to a negative electrode of the lithium ion battery and the lithium ion battery. Background technique

[0002] With the use of Mobile Internet Devices (MID) such as mobile phones and notebook computers, the promotion of Electric Vehicles such as electric bicycles and electric motorcycles, and the development of aerospace technologies such as drones and space probes, the current Lithium-ion batteries, which are widely used in these aspects, have put forward higher and higher performance requirements. A breakthrough in the performance of the negative electrode is one of the effective methods to improve the overall performance of lithium-ion batteries, and the negative electrode formulation determines the performance of the negative electrode, which makes the high-performance negative electrode formulation a research hotspot.

[0003] According to the "2012-2015 China Lit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More