Whether you are talking about lead-acid batteries, alkaline batteries, or lithium batteries, they will not work without a separator that separates the positively and negatively charged electrodes. The separator prevents direct contact between the two poles, thereby avoiding battery short circuits. Therefore, it is considered to be the basic safety feature of the battery.

Even the first battery designed by Alessandro Volta in 1800 implemented this concept. Volta relies on cardboard and leather, while modern lithium polymer batteries use ultra-thin plastic films made of polyethylene (PE) or polypropylene (PP). These films are strong enough to separate the electrodes of the battery from each other, but at the same time provide microscopic pores that allow ion exchange between the electrodes so that current can flow.

Separator made of microporous plastic

Polyethylene and polypropylene are flexible, easy to process and have very good electrochemical properties, which are ideal conditions for lithium polymer batteries. These durable materials have a weakness, and that is heat. At a temperature of about 120 degrees Celsius, the plastic begins to melt and the pores close. The ion exchange is stopped and the power supply is cut off.

This "shutdown" is designed to prevent the temperature from rising further and help the battery maintain its safety features. In some cases, this attempt will not succeed and the temperature will continue to rise. If this is the case, the plastic separator will melt completely; resulting in contact with the electrode, which can lead to a dangerous short circuit.

Heat resistance of ceramic separator
In order to improve the safety of the battery, the separator of the Jauch lithium polymer battery is additionally coated with ceramic. This coating increases stability and extreme heat protection. Ceramic-coated separators have been tested and can withstand temperatures up to 180 degrees Celsius. In addition, the use of ceramic diaphragm reduces the self-discharge rate of the battery, which has a positive impact on its service life. The ceramic coating can also resist chemicals and chemical reactions inside the battery.

Thanks to the special intrinsically safe diaphragm, Jauch lithium polymer batteries are in great demand, especially in the field of medical technology. Extremely strict regulations apply to power safety in this industry. Jauch batteries can meet these requirements—especially because of their ceramic separators.

A complete overview of Jauch's flexible and high-performance lithium polymer battery product portfolio can be found here. If you need detailed information, just call us or view our in-depth white paper.

If you want to consult more, you can send us an inquiry and have the opportunity to get big discounts.

Shenzhen Honghaosheng Electronics Co., Ltd. was established in 2004, which is a professional battery manufacturer specialized in lithium battery with expert battery design and solution.The main products are lithium ion battery and e-bike battery ,lithium polymer battery and battery pack,Hight -rate lipo battery and battery pack,Which is widely exported to Europe,Asia ,North America.South America.Our high technology, superb quality and competitive price products with excellent customer service have gained a very good reputation and genuine trust from our customers.

Our factory meet accordance of ISO9001 and ISO14001 quality system ,We have passed CEULRoHSMSDSUN38.3IEC62133KC/CB and related certifications.Our products are widely used for Electric Bicycle,Medical equipment,Solar street lamps,Smart Robot, Electric scooter, Storage energy, Power tools,electronic toys, LED lighting,digital camera, tablet PC, Pad,mobile phones,testing equipment,Portable DVD, GPS,Medical equipments, Falshlight,industrial ,Smart card,Policecommunication,Bluetooth headsets, 3D glasses and other electronic products.

There are many professional experts and engineers specialized in battery and electrical circuit design and solution to bring your idea into reality. We provide OEM and ODM service to many international brand.Our factory is located in Shenzhen, Guangdong Province with a total construction area of over 10,000 spuare meters and 500 employees including more than 50% high educated staffs.Daily production ability for lithium ion battrey 60 thousand units, for PCM 80 thousand units.