It is understood that the commonly used lithium ion battery conductive agents are carbon black, conductive graphite, carbon nanotubes, graphene and the like Among them, carbon black represented by Super-P-Li, Keqin black and acetylene black is a particulate conductive agent, and a point contact is formed between the active materials.

After a series of consecutive declines in the past few days, the GEM index rebounded sharply yesterday, with an overall increase of 184%.

The analysis found that the battery bulge occurred in certain circumstances There is no relationship between bulge and usage.

A, hydrogen fuel cell industry chainIn hydrogen fuel cell industry chain upstream is the production, transportation and storage, hydrogen at filling stations for hydrogen fuel cell system for hydrogen filling; Middle is the production of key components, such as electric pile, the pile and accessories of two parts for integration, form a hydrogen fuel cell system; In the downstream application level, mainly include transportation, portable power supply and stationary power three directionsSecond, power battery compares the advantages and disadvantages inAt present in terms of transportation with a power source, there are four main technical route: Lithium ion batteries, hydrogen fuel cells, supercapacitors and aluminum air battery.

On April 11th, the BP World Energy Outlook (2018 edition) Chinese version is published in Beijing It is predicted that in 2040, the total passenger car will nearly increase to 2 billion, of which more than 300 million vehicles.

The rechargeable battery evaluation is divided into two parameter systems: self-evaluation and comparative evaluation Self-evaluation is to evaluate some of the performance of a brand of rechargeable lithium battery, while the comparative evaluation is a comparison of a certain performance parameter for a battery with the same nominal capacity of two or more brands.

Under the pressure of the amount of subsidies directly linked to energy density, power battery companies are conducting an energy density upgrade competition Unlike most battery companies, Yuyou Power has taken the lead in mass production of a new generation of power batteries to seize the high-end passenger vehicle market while increasing the energy density of existing products.

Recently, at the press conference of “2018 China New Energy Power Battery and Energy Storage Industry Conference”, Xiao Chengwei, an expert of the national “863” plan for energy conservation and new energy vehicle major projects, said that according to the planning requirements of the national power battery technology roadmap By 2020, the single-energy density target for lithium-ion batteries is 350 watt-hours/kg He believes that this target may not be achieved from the current power battery technology.

Hydrogen fuel cell in his oxygen as the oxidant, in the hydrogen as fuel, and then through a variety of chemical reaction, fuel, in turn, will produce the chemical energy into electrical energy has a battery Hydrogen fuel cell has a large capacity, high power, high conversion efficiency and power range, and many other advantages.

In the years of work experience, I have summed up a word that is crucial for lithium-ion batteries - "even" Why is this word so important? From the perspective of the entire production process of lithium batteries, the first is the homogenization process.