The lithium-ion battery has been developed for more than fifteen years As battery technology continues to improve and battery performance requirements continue to increase, the graphite-based anode materials currently used in the market have reached the bottleneck for the increase of energy density of lithium-ion batteries.

Introduction to lithium cobaltate Liquid phase synthesis process of lithium ion secondary battery cathode material (lithium cobaltate), which uses polyvinyl alcohol (PVA) or polyethylene glycol (hook) aqueous solution as solvent, lithium salt, and cobalt salt are dissolved in PVA or pegged respectively In the aqueous solution, the mixed solution is heated to concentrate to form a gel, and the innate gel is further decomposed by heating, and then calcined at a high temperature, and the calcined powder is ground and sieved to obtain lithium cobaltate powder Advantages and disadvantages of lithium cobalt oxide advantage LiCoO2 is a good cathode material in lithium-ion batteries.

The "high margin" label, which has driven capital markets to rush, has also been torn apart in the diaphragm market, where product prices and corporate margins have fallen sharply Industry sources pointed out that last year, the overall profit margin of diaphragm manufacturers fell by 20 % ~ 30 %.

A few days ago, by the China Chemical and Physical Power Power Industry Association Power Battery Application Branch Joint Battery China Network, "Change-2018 Explore the Future Pattern of Power Battery" research activities research group line, came to Jiangxi Ganfeng Lithium Industry Co, Ltd.

In the stage of the power battery to 350 wh / kg target sprint, some people have proposed a higher power battery "fast charge" target, from the original 1 hour fast charge target value, step by step to 30 points, 20 minutes, 15 minutes, Up to now, it has been proposed to fill the 80% target for 5 minutes Some experts have already put forward the argument that high-power fast charging is an inevitable trend in the future development of electric vehicles.

In recent years, China's new energy automobile industry has developed rapidly In 2017, China's new energy vehicle production and sales exceeded 700,000 units.

From May 22nd to 24th, Zhejiang Zhongze Precision Technology Co, Ltd.

Recently, the relevant leaders of Changxing County, Huzhou City, Zhejiang Province visited Zhejiang Chaowei Beiterui Technology Co, Ltd.

1 Introduction Graphene (graphene) is a single-layer two-dimensional (2 d) carbonaceous material that is closely packed from carbon atoms Graphene has attracted much attention due to its excellent electrical, optical, mechanical and other properties.

I have a dream: "One day I can design a lithium-ion battery that has both fast charge, high specific energy, and long life characteristics!" These features are difficult to achieve at the same time Our lithium-ion battery designers are aware that fast charging can seriously affect the life of lithium-ion batteries, often because Li+ is rapidly embedded in the negative graphite grid, which can cause severe mechanical stress in the graphite material, resulting in graphite anode The problem of delamination and particle breakage of the material, in addition to too fast charging speed or low battery temperature during charging, may cause metal Li to precipitate on the surface of the negative electrode, which will lead to loss of reversible capacity of the lithium-ion battery, and decay of cycle life.