18650 rechargeable battery lithium 3.7v 3500mah
CH
About Us
Company Profile Development History Sales Network Partner Social Responsibility
Products
Rechargeable Battery Battery Packs Energy Storage Battery Primary Battery Handicraft Article
Subsidiary Company
SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD
Honor
Qualification Certificate Patent Certificate Honor Certificate
R&D
R&D Center Test Center
News
Company News Industry News
Contact Us
Other information
product
polymer lithium battery Primary battery Rechargeable Battery LR03 alkaline battery
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

Other information

Home  >  Other information

What are the lithium battery diaphragm materials and diaphragm materials?

release time:2022-11-19 Hits:     Popular:AG11 battery

  Electric vehicle lithium battery GN-24100-FAP

  According to different physical and chemical characteristics, lithium battery diaphragm materials can be divided into woven membrane, non-woven membrane (non-woven fabric), microporous membrane, composite membrane, diaphragm paper, rolled membrane, etc.

  At present, the market oriented membrane materials are mainly polyolefin membranes, mainly composed of polyethylene (PE) and polypropylene (PP). PE products are mainly made by wet process and PP products are mainly made by dry process. The following are the characteristics of PE and PP, generally speaking:

  (1) PP is relatively more resistant to high temperature, while PE is relatively resistant to low temperature;

  (2) PP density is smaller than PE;

  (3) PP has higher melting point and closed cell temperature than PE;

  (4) PP products are more brittle than PE products;

  (5) PE is more sensitive to environmental stress.

  The main diaphragm materials include single-layer PP, single-layer PE, PP+ceramic coating, PE+ceramic coating, double-layer PP/PE, double-layer PP/PP and three-layer PP/PE/PP, among which the first two types of products are mainly used in the field of 3C small batteries, and the latter are mainly used in the field of power lithium batteries.

  Among the diaphragm materials used for power lithium batteries, double-layer PP/PP diaphragm materials are mainly produced by Chinese enterprises and used in Chinese Mainland, mainly because there is no technology and ability of Chinese enterprises to make double-layer composite films from PP and PE. However, the membranes used in the global automotive power lithium batteries are mainly composed of three layers of PP/PE/PP, double layers of PP/PE, PP+ceramic coating, PE+ceramic coating and other membrane materials.

  In the structure of lithium battery, the diaphragm is one of the key inner components. The performance of the separator determines the interface structure and internal resistance of the battery, which directly affects the capacity, cycle and safety of the battery. The separator with excellent performance plays an important role in improving the overall performance of the battery.


Read recommendations:

LR14

The transformation and capacity of power batteries.CR1130 battery

Cost Control Strategies for Batteries

1.11V Ni-MH battery wholesale

lipo battery

Last article:Advantages and disadvantages of lithium iron phosphate/lithium cobalate/lithium manganate/ternary li

Next article:Disadvantages of zinc air battery

Popular recommendation

portable energy storage battery manufacturer

2023-05-10

AA NiMH battery maker

2023-03-22

36v lithium battery pack

2023-05-09

16340 battery wholesaler

2023-03-22

602030 battery wholesaler

2023-03-22

402030 180mAh 3.7V

2022-07-01

18650 2500mAh 3.7V

2022-08-19

Business laptop bag

2022-09-22

Lithium Battery GN4830

2022-08-19

801538 480MAH 3.7V

2023-06-10

No.7 card-mounted carbon battery R03P

2023-06-28

18650 10000mAh 14.8V

2022-09-30

6LR61

2022-07-01

801520 180mAh 3.7V

2022-06-27

Coin Battery CR 1220

2022-09-27

lithium battery 18650 3.7v

2023-06-25

18650 lithium ion battery 3.7v

2023-06-25

401030 polymer battery

2023-06-25

18650 battery bulk

2023-06-25

no 5 alkaline battery

2023-06-25

Why Lithium Batteries Have Successfully Replaced Lead-Acid Batteries

2025-08-07

lithium 3400mah 3.7v 18650 battery.Comparison between lithium iron phosphate and ternary materials

2023-12-20

Lithium ion battery usage requirements

2024-04-07

Classification of lithium batteries

2024-05-06

The principle of ternary polymer lithium-ion batteries

2024-05-27

Factors Affecting the Thermal Stability of Lithium Battery Electrolyte.102450 lipo battery

2023-06-08

Characteristics of lithium-ion batteries

2023-07-27

Why does lithium battery power information use lithium iron phosphate?803040 polymer battery

2023-06-10

Lithium battery manufacturers talk about what happens when metal foreign objects mix into the positi

2023-06-13

Blindly disassembling the battery causes the loss of ECU information.902030 polymer battery

2023-10-07
360° FACTORY VR TOUR
lithium ion battery 18650 priceWhatsapp
lithium ion battery 18650 price

lithium ion battery 18650 priceTel
+86 19925278095

lithium ion battery 18650 priceEmail
admin@sino-techgroup.com

TOP