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供應提高錳酸鋰性能的納米二氧化鈦
供應提高錳酸鋰性能的納米二氧化鈦
產(chǎn)品價格:
上架日期:2018-06-16 08:34:00
產(chǎn)地:安徽宣城市
發(fā)貨地:安徽宣城市
供應數(shù)量:不限
最少起訂:1公斤
瀏覽量:496
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詳細說明

    CAS:13463-67-7      

    納米二氧化鈦是一種很優(yōu)異的鋰電池原料,因為納米二氧化鈦具有嵌鋰容量大,毒性小且能耗低,穩(wěn)定性好、比容量大、循環(huán)穩(wěn)定性好,沒副反應,高環(huán)保等特性,作為負極材料具有明顯的優(yōu)點。另外,納米二氧化鈦由于光穩(wěn)定、無毒等

    性能,已成為研究生產(chǎn)光電太陽能轉(zhuǎn)換電池使用最普遍的材料。

    主要技術(shù)指標:

    項目

    指標

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          型號

    VK-T30D

    納米二氧化鈦外觀

    白色粉末

    PH值

    6-8

    水份, %(105,2hr干燥失重)

    ≤0.5

    平均原級粒徑,   nm

    20-60

    納米二氧化鈦含量,%

    ≥99.8

    表面處理劑

    0.2%電池專用處理劑

    比表面積,m2/g

    60-90

     

    應用特點:一、在鋰電池中,納米二氧化鈦具有極好的高倍率性能和循環(huán)穩(wěn)定性,快速充放電性能和較高的容量,脫嵌鋰可逆性好等特點,在鋰電池領域具有很好的應用前景。1)納米二氧化鈦能有效降低鋰電池的容量衰減,增加鋰電池穩(wěn)定性,提高電化學性能。2)提高電池材料的首次放電比容量。3)降低了LiCoO2在充放電過程中的極化,使材料具有更高的放電電壓及更平穩(wěn)的放電效果。4)適量的納米二氧化鈦可以疏松狀存在,降低了粒子間應力及循環(huán)過程中所造成的

    結(jié)構(gòu)和體積的微小應變,增加電池的穩(wěn)定性。

    、在化學能太陽能電池中,納米二氧化鈦晶體具有光電轉(zhuǎn)換率高、能很大提高太陽電池的能量轉(zhuǎn)換率、成本廉價、工藝簡單及性能穩(wěn)定的特點。其光電效率穩(wěn)定在10%以上,制作成本僅為硅太陽電池的1/5~1/10.壽命能達到20年以上。三、在鎳鎘電池中,納米二氧化鈦具有良好的導電性、寬溫度工作范圍的特點。

    用量:建議添加量0.5-2%。

    包裝 15公斤/紙桶內(nèi)襯塑料薄膜袋。

     

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