四層復(fù)合隔膜

★四層復(fù)合隔膜（Al₂O₃/熱關(guān)斷層/PP/Al₂O₃）

Four-layer composite separator (Al₂O₃/ thermal shutdown layer/ PP/ Al₂O₃ )

關(guān)斷溫度：A型125℃ B型113℃

●產(chǎn)品特點(diǎn)Features

1.熱關(guān)斷溫度低：可提供兩款不同關(guān)斷溫度的產(chǎn)品致份，A型號關(guān)斷溫度為value="125" unitname="℃" w:st="on">125℃，B型號關(guān)斷溫度為value="113" unitname="℃" w:st="on">113℃础拨。當(dāng)鋰電池發(fā)生異常發(fā)熱氮块，達(dá)到關(guān)斷溫度時(shí)绍载，熱關(guān)斷層會立即切斷隔膜的離子通道，從而抑制電池溫度的進(jìn)一步上升滔蝉，起到“保險(xiǎn)絲”的作用击儡。

2.熔破溫度高：氧化鋁涂層具有優(yōu)異的耐高溫性，在value="210" unitname="℃" w:st="on">210℃以上還能保持隔膜形態(tài)蝠引。

3．熱收縮醒舻：在value="150" unitname="℃" w:st="on">150℃高溫下縱向熱收縮小于5%，橫向熱收縮保持為0螃概。

4．高安全：雙層氧化鋁矫夯，安全系數(shù)更加高。

5.抗刺穿：氧化鋁涂層堅(jiān)硬谅年，可阻止極片毛刺茧痒、粉塵及鋰晶枝刺穿隔膜。

6.耐氧化性：氧化鋁涂層可保護(hù)基材不被氧化融蹂。

7.良好浸潤性：氧化鋁涂層具有良好的吸液及保液能力旺订，提高充放電性能。

8.提升電池耐酸性：氧化鋁涂層可中和電解液中游離的氟化氫超燃。

9.低自放電率：氧化鋁涂層及熱關(guān)斷層增加微孔曲折度及硬度区拳，自放電大大低于普通隔膜。

10．循環(huán)壽命長：降低了循環(huán)過程中的機(jī)械微短路意乓，有效提升循環(huán)壽命樱调。

1.Low temperature of thermal shutdown: two types of different shutdown temperatures are available，i.e. the shutdown temperature of type A is value="125" unitname="℃" w:st="on">125℃, and the shutdown temperature of type B is value="113" unitname="℃" w:st="on">113 ℃. When the lithium battery occurs in abnormal heating, and reaches to the shutdown temperature, the thermal shutdown layer will immediately cut off the ion channel of the separator, so as to control the battery temperature to rise further, having the effect of "fuse".

2. High meltdown temperature: the aluminium coating enjoys excellent high temperature resistance, and can maintain separator form atvalue="210" unitname="℃" w:st="on">210℃ or above. 

3．Shrinkage is low: MD shrinkage is less than 5% at the high temperature of value="150" unitname="℃" w:st="on">150℃, and TD shrinkage maintains 0.

4.High safe: the double-layer aluminium enjoys more secure performance.

5.Puncture-resisting: tough aluminium coating can prevent burrs of pole piece, dust and lithium dendrites from puncturing separator.

6.Oxidative resistance: Alumina coating can protect the base material from oxidization.

7. Good wettability: Alumina coating has good imbibition and liquid preserving capabilities, can enhancecharge and discharge performance.

8.Promote battery acid resistance: Alumina coating can neutralize dissociative hydrogen fluoride in electrolyte.

9.Low self-discharge rate: alumina coating and thermal shutdown layer increase microporous sinuosity and hardness that self-discharge of the separator is much lower than the ordinary separator.

10. Long cycle life: reduce mechanical micro short circuit in cyclic process and efficiently promote the cycle life.

●應(yīng)用范圍Application

主要應(yīng)用于大型動力鋰離子電池届良、儲能鋰離子電池以及其它高安全性鋰離子電池

Mainly applied in large power lithium ion battery, energy storage lithium ion battery and other high security lithium ion batteries.