Lithium batteries for electric vehicles are afraid of freezing. Lithium batteries are inherently difficult to discharge at minus 10°C because the electrolyte solidifies. Under low temperature conditions, the activity of the lithium battery and the lithium insertion activity of the negative active material will be affected, resulting in reduced battery capacity and reduced flow performance.
The optimal driving environment for lithium-ion electric vehicles is when the temperature is around 25°C. Due to the cold weather in most areas at this time, the battery capacity will also decrease significantly. Due to the special properties of lithium batteries, the battery capacity will attenuate to varying degrees at low temperatures. Specific reference: -10℃, usable capacity is 70%, 0℃ is 80%, and 25℃ is 100%.
< p> Detailed information:
Notes
1. Charge the vehicle at an ambient temperature of 0℃~35℃. The system will stop charging when ambient temperature is reached. below 0℃.
2. After being fully charged, you can charge it for another hour. Do not charge more than 12 hours for the N50 and 15 hours for the N80. Avoid overcharging, which will affect battery life.
3. If you turn off the battery for a long time, please store it with the battery at 50%, keep the room temperature between 0℃ and 20℃, and charge the battery at least once a month. If battery power is stored below 20% or above 90% for a long time, it will cause irreversible battery power degradation.
Encyclopediae Baidu - Lithium Battery
Low temperature performance of lithium battery
Specifically, what is low temperature? It also depends on whether we use it for starting or energy storage? If it is a gel lead-acid battery capable of storing energy at more than ten degrees below zero, lithium batteries can be discharged at low temperatures, but they cannot be charged if you charge a lithium battery several times at low temperatures. the battery will be discarded! If you want to be able to charge and discharge at the same time, it is recommended to use a roll-up battery. Currently, Shenzhen Baolisheng's winding batteries are quite good and can reach temperatures as low as minus 55°, truly solving the problem of low temperatures. -charging and discharging in temperature. Tested by myself, absolutely true!
A factorywho deals with low temperature lithium batteries?
Lithium-ion batteries are widely used due to their light weight, high specific energy and long cycle life. Low temperature lithium batteries are made from special materials and processes and are suitable for subzero temperatures. Environmental use as well as excellent discharge capacity and working performance are generally required to operate normally in an environment of around -40°C, with discharge capacity maintained above 80%, and operating temperature the lowest can reach -50°C.
It is divided into three series according to its environment of use: low temperature civil battery, special low temperature batteries, low temperature batteries for extreme environments.
Civilian lithium battery at low temperature: battery dischargeerie from -20℃ to 0.2C is more than 90% of rated capacity; battery discharge of -30℃ to 0.2C is more than 85% of rated capacity; ;
Special low temperature lithium battery: battery discharge at -40°C to 0.2C is more than 80% of the rated capacity
Low temperature lithium battery temperature for extreme environments: -50°C battery 0.2C discharge represents more than 50% of rated capacity.
What type of battery is Boston low temperature resistant battery?
Lithium battery for electric two wheelers
Look the lithium battery before buying Whether the battery cell used is grade A, the quality of the battery cell determines the quality of the battery, such as capacity and energy density. Second, find a lithium battery produced by a major manufacturer. mature and after-sales service is guaranteed. The reference price ofThe lithium battery market is 1250. Yuan/KW.H. If you have to travel a long distance, it is best to install a range extender. With it, you won't be afraid of running out of energy halfway and it can help you travel worry-free.
As the cruising range of low-speed electric two-wheelers is still relatively limited and cannot fully meet the daily travel needs of the public, if you want to increase its cruising range, you can install a range extender. . Increase its cruising range, expand its range of activities, meet the daily travel needs of the public, and travel back and forth freely, without more difficulty due to lack of power halfway.
You can buy the range extender directly from the manufacturer, and they will ship it directly, which will be cheaper. It is necessary to choose an extensioneur of autonomy produced by a major manufacturer and a major brand to have all the guarantees in terms of quality, performance, manufacturing and after-sales service. Otherwise, if it is a small workshop type manufacturer, it will be easy to break and there will be no guarantee in all respects.
Recommendations for using the range extender:
It is not recommended to start the range extender when the battery is full. It is generally recommended to start the range extender when the battery is only charged. 30%-40%. There is no particularly good effect when starting when the battery is full. For the sake of respect for the environment, it is recommended to start the range extender when necessary. Battery pollution is more serious than exhaust pollution. It is not recommended to use it when the battery is low on electricity. The extenderautonomy starts electrically. If the battery is low on electricity, it may not start.
Boston low temperature resistant batteries are lithium batteries. "Boston Batteries has relevant experience in assembling NASA space robots. Space has a near-vacuum environment and unimaginable drastic temperature changes. The lowest temperature can reach -200 degrees Celsius. This shows the extraordinary aerospace quality of Boston batteries, and the safety, which is the main criterion for batteries, is exceptional, whether it is the protective coating of the components, the design of the wiring or the interior and the "Inside. outside of the battery. Short circuit protection and vacuum sealing of the battery all demonstrate high-tech and design concepts," Xu Jiangbo said at the forum. Boston cells have many exampleses successful operation at low temperatures. In January this year, under -18 degrees Celsius in Hohhot, Inner Mongolia, an assembly with Boston Battery buses was used in demonstration. The Boston battery is not equipped with any heating system in low temperature environments, can be charged and discharged normally, and works stably. When tested, the battery core had excellent consistency and could release more energy with the same amount of electricity. The maximum temperature difference between battery cells does not exceed 3 degrees Celsius, and the temperature field is evenly distributed, ensuring the consistency and long life of the battery cells. The range on a single charge is 258 km in winter (SOC: 95% ~ 30%). Likewise, in the Swedish regions of Arjeplog and Lapland located at 66° north latitude, in an environment of -15 degrees Celsiuss, a car equipped with a Boston battery was tested continuously for several days. Battery power was stable and not affected by any elements. low temperature.
It is understood that as the world's leading battery supplier, Boston Battery's unique mixed ternary materials, optimized rare earth formula and innovative structural design enable its products to achieve high density high energy, long life and a wide range of applications. The extremely high temperature range and safety features have won the favor of many customers. This type of battery has obvious advantages over traditional lithium iron phosphate batteries when used in low temperature environments. The Boston battery can discharge normally between -40 degrees Celsius and 70 degrees Celsius. Discharge capacity reaches 60% of nom capacityinal to -40 degrees Celsius. It can be charged normally at -20 degrees Celsius. long-term use between 15 degrees Celsius and 45 degrees Celsius. This ensures that the operation of electric vehicles is virtually unaffected by the climate.