18650 Insulation Paper

Description

18650 insulation paper is an important component used in lithium-ion batteries. It acts as a protective layer between the two electrodes, preventing any short circuits that could potentially damage the battery.

The use of insulation paper has been instrumental in making these rechargeable batteries safe and reliable. Manufacturers take great care in producing quality insulation paper to ensure that their batteries meet industry safety standards.

In addition, the insulation paper enhances the performance of the battery by keeping it from losing energy due to internal resistance. This results in longer battery life and improved overall performance.

The demand for 18650 insulation paper is on the rise as lithium-ion batteries continue to gain popularity for their use in various applications including smartphones, laptops, power tools, electric cars, and many more.

As we embrace technology and the ever-increasing use of batteries, it's essential to acknowledge the critical role of insulation paper in ensuring that these batteries are safe and reliable. The important work done by manufacturers in producing quality insulation papers should not go unnoticed.

In conclusion, 18650 insulation paper plays a vital role in ensuring the longevity and safety of lithium-ion batteries. It is a necessary component used by battery manufacturers to produce high-quality rechargeable batteries. The advances in technology have made it critical for us to appreciate the role of insulation paper and the crucial work of the manufacturers.

Item		Unit	Requirement
Thickness		mm	0.15	0.17	0.2	0.22	0.25	0.27	0.3	0.4	0.5
Thickness tolerance		mm	±0.02		±0.03					±0.04	±0.05
Density		g/m2	190±28	215±32	250±38	275±40	310±46	330±50	370±55	490±73	610±90
Film thickness		um	36
Tensile Strength	MD no bending	N/10m m	≥135	≥150	≥170	≥190	≥210	≥240	≥270	≥320	≥410


	MD after bending		≥80	≥90	≥100	≥120	≥130	≥140	≥150	≥230	≥300
	TD no bending		≥80	≥90	≥100	≥110	≥120	≥130	≥140	≥200	≥260
	TD after bending		≥60	≥60	≥80	≥80	≥80	≥90	≥100	≥130	≥170
Elongation	MD	%	≥2		≥3
（%）
	TD		≥8		≥10
Breakdown voltage	Not bending	kV	≥7

	After bending		≥6
Delamination		—	No Delamination, no bubble or other defects
Affected by heat（130±2℃） 10min			No Delamination, no bubble, no adhesive flow
Long-term heat resistance			≥120
(temperature index TI)
Weight and area conversion		m2/Kg	6.23	5.21	4.68	4.24	3.74	3.46	3.12	2.34	1.87