How do lithium batteries perform at low temperatures?

How do lithium batteries perform at low temperatures?,
602535 polymer lithium battery,

Application

Telecommunications: walkie-talkie, cordless phone,interphone,ect
Power tools: electric drills, screwdriver and electric saw and so on;
Power toys: electric auto, electric plans ;
Video cassette recorder ;
Emergency lightings;
Electronic toothbrush;
Light Therapy;
Vacuum cleaner;
Other equipment with high power discharge.

XUANLI advantages

1. With more than 12years’ experience and more than 600 skilled staff serve you.

2. Factory ISO9001:2015 approved and most products comply with UL,CB,KC standards.

3. Wide range of production line covers Li-polymer battery,Lithium ion battery, and battery pack for your various demand.

FAQ

Q1. Can I have a sample order for Battery?

A: Yes, we welcome sample order to test and check quality.

Q2. What about the lead time?

A:Sample needs 5-10 days, mass production time needs 25-30 days.

Q3. Do you have any MOQ limit for Battery?

A: Low MOQ, 1pc for sample checking is available

Q4. How do you ship the goods and how long does it take to arrive?

A: We usually ship by UPS, TNT… It usually takes 3-5 days to arrive. Airline and sea shipping also optional.

Q5. How to proceed an order for Battery?

A: Firstly let us know your requirements or application.Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order.Fourthly We arrange the production.

Q6. Is it OK to print my logo on Battery?

A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q7: Do you offer guarantee for the products?

A: Yes, we offer 1-2 years warranty to our products.

Q8: How to deal with the faulty?

A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new batteries with new order for small quantity. For defective
batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.The use of lithium batteries in the northern low-temperature areas, originally full of energy lithium batteries, capacity to play a discount, which to new energy vehicles and digital products users have brought no small trouble.
Batteries are somewhat similar to people, and the climate is not so active after cooling, lead batteries, lithium batteries and fuel cells will be affected by low temperatures, but to different degrees.
Taking the lithium iron phosphate battery used most on the electric bus as an example, this battery has high safety and long single life, but the low temperature performance is slightly worse than the battery of other technical systems. Low temperature has influence on positive and negative electrodes, electrolyte and adhesive of lithium iron phosphate. For example, the lithium iron phosphate positive electrode itself has poor electronic conductivity, and it is easy to produce polarization at low temperatures, thereby reducing the battery capacity; Affected by low temperature, the graphite lithium insertion speed is reduced, it is easy to precipitate lithium metal on the negative surface, if the shelving time is insufficient after charging and put into use, lithium metal can not all be embedded in the graphite, some lithium metal continues to exist on the surface of the negative electrode, it is very likely to form lithium dendrites, affecting the safety of the battery; At low temperature, the viscosity of electrolyte will increase, and the migration impedance of lithium ion will also increase. In addition, in the production process of lithium iron phosphate, the adhesive is also a very key factor, and low temperature will also have a greater impact on the performance of the adhesive.
Although lithium-ion batteries with graphite as a negative electrode can be charged at -40 ° C, it is more difficult to achieve conventional current charging at -20 ° C and lower, which is an area that the industry is actively exploring. Battery manufacturers need to overcome a number of technical bottlenecks to develop low-temperature lithium battery products. The low temperature performance of ordinary lithium batteries is poor, and lithium iron phosphate batteries cannot make electric vehicles run at extremely low temperatures. When using low-temperature lithium batteries, be sure to pay attention to waterproof, after the use of some low-temperature equipment, the lithium battery should be promptly removed and placed in a dry, low-temperature place for safekeeping, in order to prevent and avoid the occurrence of home fire accidents caused by improper use of lithium batteries. Lithium-ion batteries have low energy density, safety and storage functions of conventional lithium batteries, and high and low energy performance. Low-temperature lithium batteries also have the advantages of large discharge rate, stable product performance, high specific energy and good safety.
There are two types of lithium batteries according to discharge performance: low-temperature lithium batteries with moisture-proof energy storage and low-temperature lithium batteries with rate. With the development of scientific and technological progress, researchers use innovative design concepts, for the performance of chemical power inherent in the low temperature defects and specially developed a special battery, the use of advanced formula system and materials, relative to the conventional lithium battery operating temperature is -20℃-60℃, the use of special materials to do the low temperature lithium battery can be discharged in the cold environment. High temperature and low temperature are the key factors affecting the power consumption effect of lithium batteries. But the low temperature here does not mean low battery capacity. Power supply: The influence of low temperature on the mobile power supply affects the conductivity and material activity in the cell, reduces the battery capacity, and can also lead to short circuit, and long-term low temperature will affect the lithium battery capacity.