A new type of 18650 battery 3500mah lithiumhas been developed abroad that can be charged in 15 minutes at minus 43 degrees Celsius.

　　Lithium-ion batteries don't like cold environments. Below 10 degrees Celsius, traditional lithium-ion batteries cannot charge quickly, which is a serious problem for electric vehicles in many regions. In Scandinavia, electric cars must be equipped with a small heater in the 18650 battery 3500mah lithiumbox, while the heating devices in California are significantly larger than those in Minnesota and Canada.

　　A team led by Chao-Yang Wang, director of the Electrochemical Engine Research Center at Penn State University, has developed a new type of 18650 battery 3500mah lithiumthat can avoid energy loss in subfreezing temperatures through self-heating. It relies on the same principle as a fast-charging station, but it allows the 18650 battery 3500mah lithiumto be charged in 15 minutes even when the ambient temperature drops to minus 43 degrees Celsius.

　　In this kind of battery, one end of a nickel sheet is connected to the negative electrode, and the other end is extended outside the 18650 battery 3500mah lithiumto form a third terminal. When the temperature sensor connected to the switch detects that the ambient temperature drops to about 25 degrees Celsius, it will control the current through the nickel sheet through the switch. The resistance causes the nickel plate to heat up and provide temperature to the 18650 battery 3500mah lithiumfrom within.

　　Once the temperature rises above room temperature, the 18650 battery 3500mah lithiumis equipped with a switch that automatically diverts current to charge the 18650 battery 3500mah lithiumdirectly. Wang claimed that this means that we do not need to replace the charging station, we only need to control the heating and charging within the battery, and there is no need to adjust the charging device.

　　In a report published in the journal Proceedings of the National Academy of Sciences, the researchers claimed that their prototype 18650 battery 3500mah lithiumcan withstand 4,500 15-minute fast charges at 0 degrees Celsius with only 20% energy loss. This means the 18650 battery 3500mah lithiumlife will be 12.5 years. In comparison, a traditional 18650 battery 3500mah lithiumwith 20% energy loss can only withstand 50 charges.

　　Researchers say this innovative technology also makes batteries safer. Charging lithium-ion batteries at 10 degrees Celsius can cause lithium ions to accumulate on the anode surface, which can create risks such as short circuits, heat loss and fire. Researchers say this unique fast-charging method could allow manufacturers to create smaller batteries for electric vehicles that are lighter and safer.

　　Technology Zone The national standard for mobile power supplies has been officially implemented on July 1st. A new type of 18650 battery 3500mah lithiumhas been developed abroad. It can be charged within 15 minutes at minus 43 degrees Celsius. Vishay announced the expansion of the SOT-227 package power module product line and will benefit from the implementation of 7 new devices. The design of the inverter output AC voltage in the emergency power supply is timely adjusted. Waterma announced that it has financial difficulties and all employees will take a six-month holiday.

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