On April 24, Didi announced the establishment of the “Hongliu Alliance” in Beijing, trying to unite upstream and downstream enterprises in the entire industrial chain Wei Cheng, founder and CEO of Didi Travel, said that the number of service people per day is 30 million to 40 million, which has surpassed China Railway Corporation and become China's largest travel network.

In recent years, many mobile phone explosions have caused people to worry about the use of mobile phones The security industry trend technology said that in fact, as long as we understand the 3 possible reasons behind the explosion, as well as 5 ways to prevent mobile phone users, we can rest assured that the use of convenient and safe mobile phone.

Due to the recent occurrence of abnormal heat and self-burning of Samsung Galaxy Note7 mobile phones in the world, the Civil Aviation Authority issued regulations on the ban on carrying Samsung GalaxyNote7 mobile phones on October 27, and strictly prohibited passengers and crew members to carry Samsung Galaxy Note7 mobile phone by hand or luggage It is strictly forbidden to put the Samsung Galaxy Note7 mobile phone in checked baggage.

In the early morning of September 13, Apple released three new iPhones: iPhoneX, iPhone8/Plus, and the iPhoneX's starting price of 64GB storage is priced at 8388 Yuan The 256GB storage version is 9688 Yuan.

Ideal lithium ion battery, except lithium ion in between the positive and negative electrode embedded and out, do not occur other side reactions, and do not appear lithium ion irreversible consumption The actual lithium ion battery has side reactions all the time.

The designed floating charge life of domestic single 12V lead-acid battery is 5-8 years, but it has been completely scrapped within 1-2 years No matter any lead-acid battery (including domestic, imported), in the use of the total can not escape ahead of the scrap cycle.

Li-polymer battery (li-polymer battery) : compared with previous batteries, there is much more energy, miniaturization and light weight, which is a kind of chemical batteryIn the shape of lithium polymer battery, lithium polymer battery has the characteristics of ultra-thin, can cooperate with the needs of some products, made into different shapes and capacity of the battery.

At present, there are more and more articles promoting the quick charging of power batteries Some manufacturers' propaganda has gone too far.

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Lithium batteries and lithium - ion batteries are new high - energy batteries that successfully developed in the 20th century Lithium battery generally refers to lithium battery and lithium secondary battery.