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
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

21700 battery

release time:2024-09-20 Hits:     Popular:AG11 battery

What is the current status of 21700 battery diaphragm technology?

 

21700 battery diaphragm technology is a pain point in my country's power 21700 battery industry. Among 21700 battery materials, positive and negative electrode materials and electrolytes have basically been domestically produced, while diaphragms started late and domestic companies have low technical maturity. Although the localization rate of 21700 battery diaphragms in my country has been increasing in recent years, it mainly occupies the low-end 3C battery diaphragm market, and the localization rate of high-end diaphragms is still very low. High-end 3C batteries and power 21700 battery diaphragms still rely heavily on imports.

 

It is reported that diaphragms are a high-value-added material with the highest technical barriers among lithium battery materials, accounting for about 15% of the cost of lithium-ion batteries. The technical difficulty lies in the engineering technology of pore making, matrix materials, and manufacturing equipment. The common problems of domestic lithium battery diaphragms are low consistency, mainly irregular defects, substandard porosity, uneven thickness, pore distribution, and pore size distribution. The porosity and pore size distribution of domestic PP diaphragms stretched in one direction are close to those of foreign products; the porosity of PE diaphragms stretched in two directions and in steps is usually lower than that of foreign products, and the pore size distribution is also not ideal.

 

In the field of wet-process diaphragms, domestic diaphragm companies are limited by many factors such as process and technology, and the product level is still low, and a large amount of processing equipment relies on imports. Like chips, high-end diaphragm technology has a very high threshold. It not only requires huge investment, but also requires a strong R&D and processing team, sophisticated process technology and high-level processing lines, and it is not possible to break through in a short time.


Read recommendations:

6F22

Decomposition of Causes of Explosion and Combustion of Lithium Batteries.lithium ion solar energy st

Advantages of polymer lithium batteries

Nickel Metal Hydride No. 12 battery Manufacturing

lithium 18650 battery

Last article:26650 battery

Next article:2025 button cell battery

Popular recommendation

801620 battery Manufacturing

2023-03-22

703048 battery company

2023-03-22

602030 battery Manufacturing

2023-03-22

li-ion 18650 battery Vendor

2023-03-22

3.2v 280ah lifepo4 battery cell

2023-03-22

Ni-MH AA1200mAh 1.2Va

2022-07-01

Lithium Battery GN6020

2022-08-19

551521 130mAh 3.7V

2022-07-01

Coin Battery CR 2450

2022-09-27

601848 500mAh 3.7V

2022-07-01

801538 480mAh 3.7V

2022-06-27

902030 500mAh 3.7V

2022-08-19

D USB 1.5V 6000mWh

2023-06-29

Lithium-ion battery GN200

2022-07-29

601435 270mAh 3.7V

2022-07-01

lithium ion battery cells 18650

2023-06-25

3.7v battery 18650

2023-06-25

18650 battery rechargeable

2023-06-25

Carbon battery

2023-06-25

9V rechargeable battery

2023-06-25

Detailed explanation of the advantages of nickel hydrogen batteries

2024-08-23

Lithium iron phosphate battery: already mature but not enough

2024-04-16

602030 lipo battery.Long term storage of lithium batteries

2023-11-28

Lithium - ion Batteries for Smart Wearable Devices

2024-11-22

So does the battery need to be activated

2024-04-23

Production requirements for lithium batteries.18650 lithium battery 3000mah

2023-08-11

In -depth interpretation of lithium ion batteries.lithium battery for solar energy storage system

2023-03-24

18650 lithium battery 3.7 v.Which is better, 18650 lithium battery or polymer lithium battery?

2023-10-13

What are the differences between energy storage lithium batteries and power lithium batteries.househ

2023-05-06

What changes will water cause in lithium-ion batteries?

2023-09-05
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