FedEx is using a fuel cell electric truck to transport cargo, the first fuel cell electric truck used on a North American road, according to foreign media reports The zero-emission truck is a cooperative project between the Workhorse Group and PlugPower.

For mobile phone, tablet computer users, the biggest trouble is not able to access the Internet, I am afraid that the power is not enough, charging time is too long! So why isn't the battery durable? Let's have a look! In the past seven years, mobile phones have undergone a transformation from functional to smart phones, and the role of mobile phones in life is becoming more and more important However, the rapid development of mobile phones, performance and other aspects have achieved rapid development, except that battery technology has been developing slowly, which has also become an important reason for restricting the further development of mobile phones.

Recently, the Institute of High Industrial Production and Research Lithium Research Institute(GGII) visited more than 50 companies and participated in multiple forums It was found that lithium batteries currently have major breakthroughs in high-energy density technology.

What's a lithium battery? Our commonly used smart-phone batteries belong to lithium batteries, so what is the principle of lithium batteries? How should we choose them? I, Principle of Lithium Battery-Introduction Lithium batteries, a battery that was invented by Edison as a negative electrode material using a non-aqueous electrolyte solution, is a Redox reaction of Li + MnO2 = LiMnO2 Due to the very lively chemical properties of lithium metals, they have not been widely used for a long time.

Today, mobile phones use lithium-ion batteries Therefore, there is no doubt about the memory effect of lithium-ion batteries in electric vehicles.

As Asia's two biggest car powers, China and Japan are vying over whether electric vehicles should be powered by rechargeable batteries or hydrogen fuel cells in the future In this competition, if the victor's technology is adopted by other peers as a global standard, it can enjoy a dominant position in the industry for many years.

The cooperation of production, study and research is the driving force of innovation and development The "study and research" of the campus and the "production and use" of the market body are deeply merging.

Solving the safety problem of lithium batteries needs to learn from overseas experience In recent years, due to the frequent occurrence of electric vehicle fire incidents caused by battery safety problems, it is an indisputable fact that the majority of consumers who already have doubts about electric vehicles are even more resistant The root cause is that factors such as overcharging, overheating, electric triggering, and collisions may all lead to thermal runaway power cells.

The "Action Plan for the Development of the Automobile Power Battery Industry" issued by the four ministries also includes a temperature target for the use environment of lithium-ion power cells: " And .

The Wakeman interface uses the USB interface mode, which is used in combination with the USB single-tone to Bluetooth headset in the accessories In addition, it also acts as a power charging interface.