Advantages of Tesla's new 21700 batteryLike the 18650 battery, the Tesla 21700 battery is also one of the cylindrical lithium-ion batteries. Among them, 21 refers to the battery with a diameter of 21 mm, 70 refers to the height of 70 mm, and 0 refers to the cylindrical battery.(1) The capacity o...

Nowadays, many of the electronic devices we use daily rely on batteries, whether they are smart phones, laptops, electric cars or other devices. We live in an era of explosive growth in technological innovation, but many new technologies still rely on the same energy storage methods.Although battery...

You will definitely find a problem when using mobile phones. That is, the battery of mobile phones is becoming more and more durable. At first, it can be used for two days, but now it can not be used for even one day. Many people will directly replace the battery of mobile phones when the service ti...

Recently, a team of engineers at the University of California, San Diego, developed a scalable biofuel cell that can extract energy from sweat and power electronic products such as LED and Bluetooth adapters.The battery is composed of a row of dots, each of which is connected by a spring-shaped stru...

Guide: Mobile phones are becoming more and more important in our life. It brings us a lot of convenience and adds a lot of fun to our life. As we all know, batteries are a very important part of mobile phones. Mobile phones need batteries to run, but there will be some problems after the batte...

Although the charging cost of electric vehicles is relatively low compared with traditional fuel vehicles, due to the high price of electric vehicles and the relatively short service life of batteries, the replacement of batteries will also be a huge expense, so the cost barrier 'battery mainten...

With the commercialization of lithium batteries becoming more and more widespread, the charging and discharging process of lithium batteries on the surface of the positive material is that when the battery discharges, the lithium ions in the hole enter the positive active material. If the current in...

Lithium battery refers to the battery containing lithium (including metal lithium, lithium alloy, lithium ion and lithium polymer) in the electrochemical system. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries a...

Lithium battery has many advantages, such as high energy density, stronger discharge capacity than dry battery and nickel-cadmium nickel-hydrogen battery, faster charging speed than nickel-cadmium nickel-hydrogen battery, and no memory effect of nickel-cadmium battery. Waste dry battery and nickel-c...

The ideal polymer gas separation membrane material should have high permeability and good permeability selectivity, high mechanical strength, excellent thermal and chemical stability and excellent film-forming processing performance. Among the above requirements, the gas permeability of the ga...