According to CCTV's "Weekly Quality Report", this year, the State Administration of Quality Supervision, Inspection and Quarantine organized the monitoring of product quality and safety risks of mobile power sources(commonly known as "charging treasures") The 32 batches of products collected from the market have quality and safety risks through the detection of heat abuse, overcharging, short-circuit and other items.

Due to the rapid diffusion ability of H + in aqueous solution, early rechargeable batteries mainly used strong acids(H2SO4) or strong bases(KOH) as electrolytes At that time, the most reliable rechargeable battery was NiOOH as the positive electrode.

According to OilPrice, the electric car revolution is driving the growth of lithium-ion batteries The market for lithium-ion batteries could reach $67 billion by 2022 -- and it will thrive as long as the energy supply continues.

With the deterioration of the domestic environment, lithium-ion batteries with relatively small pollution are increasingly respected by the market Correspondingly, the development of lead-acid batteries is under environmental pressure.

On February 25th, a passenger mobile power supply(Charging Bao) accidentally caught fire on a flight of China Southern Airlines Fortunately, the aircraft had not yet taken off and the crew had handled it in a timely manner and did not lead to further disaster.

On November 28, Shenzhen Xinlun Technology Co, Ltd.

The advantages of zero emissions from hydrogen fuel cell vehicles, long mileage, and short fuel refueling time have prompted many listed companies to lay out this area On May 11, hydrogen fuel cell vehicles once again attracted widespread attention in China.

According to foreign media reports, the French-based ARTS energy company entered the market for hybrid vehicles and high-power applications through a strategic partnership with Hunan Keba Automobile Power Battery Co ARTS is a manufacturer that uses chemicals to provide battery storage technology solutions.

On April 26, the China Automobile Power Battery Industry Innovation Alliance of China Automobile Power Battery Industry jointly started the application of the white list for the automotive power battery and hydrogen fuel cell industry Since April 26, the first batch of white lists have been officially launched.

In winter, users of electric vehicles have a clear feeling that the battery use time has become shorter! Why is that? For lithium batteries, there is no clear theory in the industry to support the internal resistance, discharge platform, life span, capacity and other necessary links under each temperature performance, and the relevant calculation formulas and mathematical models are still groping for the stage In general, lithium batteries are not sensitive to the temperature of the 0-40 °C range, but once the temperature exceeds this range, the life and capacity will be reduced.