For the modification of elemental silicon, the Si-M alloy is formed by incorporation of the second component, the volume expansion coefficient of the silicon alloy is reduced, or the silicon is made porous and nanosized by various engineering techniques, and the volume expansion of silicon is reserved Space, reducing the effect of silicon volume effect on material cycle stability.

The 2018 China Automobile Forum officially opened on April 4-26 The theme of this forum is: new era, new trends, new strategies.

Researchers at the University of Rice in the United States used large pieces of graphene oxide flakes as the basic raw material to "spin" strong carbon fibers that are as hard to pull apart as the rest of the fiber when subjected to tension Light aircraft, bulletproof fabric, etc.

With the continuous advancement of pollution prevention and control actions in various regions, the environmental problems in the transit and temporary storage of waste lead-acid batteries have become increasingly prominent They have received high attention from relevant departments of the state and gradually put on the National key control agenda.

Li Yangxing et al used a mixed solution of lithium acetate and cobalt acetate as a precursor, and the mixed powder prepared by spray drying method was heat-treated to obtain LiCo02 ultrafine powder.

The Ningde era signed a power battery procurement contract with Renault According to foreign media reports, Nissan Renault is accelerating the layout of the Chinese new energy vehicle market and has signed a power battery procurement contract with Chinese battery manufacturer CATL At present, the Ningde era has entered the supply system of international first-class vehicle companies such as BMW, Volkswagen, Nissan, and Daimler.

Nandu Power recently issued an announcement saying that in order to meet market demand and improve its core competitiveness, the company intends to use its own capital of RMB 10 million to establish a wholly-owned subsidiary, Anhui Nandu Huabo Platinum New Materials Technology Co, Ltd.

With the promotion of electric vehicles and the development of related technologies, the three-part lithium battery (hereinafter referred to as "three-part battery") has become a trend In the domestic market, passenger cars have been refitted with ternary batteries, and their production capacity has continued to grow.

Lithium-iron phosphate batteries are gradually coming into view because they are more efficient and energy-efficient than lead-acid batteries At present, lithium iron phosphate batteries are mainly used in electric vehicles and have gradually entered the communications industry in the past two years.

"This production line only needs four people to control, including the two people needed for the final Pack cover," said the staff standing next to the battery line On June 5, at the SAIC General Motors Power Battery System Development Center in Jinqiao, Pudong, Shanghai, the media saw the SAIC General Battery Production Line officially operating at the end of last year.