What materials are used to make lithium batteries

(1) Carbon negative materials:

The negative electrode materials that have been actually used in lithium ion batteries are basically carbon materials, such as artificial graphite, natural graphite, intermediate phase carbon micro spheres, petroleum Coke, carbon fiber, and pyrolytic resin carbon.

(2) Tin based negative electrode material:

Tin negative electrode materials can be divided into tin oxides and tin composite oxides. Oxides refer to oxides of various valence metals. No commercial products.

(3) Nitride

There are no commercial products.

(4) Alloy

Including tin-based alloys, silicon-based alloys, germanium alloys, aluminum-based alloys, antimony alloys, magnesium alloys, and other alloys, there are no commercial products.

(5) Nanograde

Carbon nanotubes, nanoalloy materials.

(6) Nanooxide

At present, Hefei Xiangzheng Chemical Technology Co., Ltd. has used the latest trends in the market development of the new energy industry of lithium batteries in 2009. Many companies have begun to use Nano titanium oxide and nano Silicon oxide to add to the traditional graphite, tin oxide, and nano carbon tubes., greatly improve the charge and discharge of lithium batteries.

(7) Conductive coating

Conductive coatings, also known as precoatings, are usually referred to in the lithium battery industry as a layer of conductive coating coated on the surface of a positive collector fluid, aluminum foil. Aluminum coated with conductive coatings is called pre-coated aluminum foil or simply coated aluminum foil. Its earliest experiments in batteries date back to the 1970s. In recent years, with the development of new energy industries, especially lithium iron phosphate batteries, it has become a hot new technology or new material in the industry.

performance

The conductive coating can effectively increase the adhesion of the electrode and reduce the use of binders in the lithium battery. At the same time, the electrical performance of the battery is also significantly improved. The products of major foreign companies are not introduced. Let's introduce the only product in China that is promoted in the market and has its own intellectual property rights -- WX112, which is developed and produced by ZTE's new Shanghai ZTE Energy Energy Technology Co., Ltd.. Take a look at the samples obtained. Technical requirements such as full coating, edge retention, and Gap retention can be achieved. The performance is as follows:

1. Contact resistance reduced by 40 %

2. Reduction of adhesive usage by 50 %

3. At the same rate, the battery voltage platform is increased by 20 %

4. The adhesion of materials and gathering fluids is increased by 30 %, and there will be no delamination after long-term circulation.

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