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發布時間:2023.07.26 瀏覽次數: 廣州南洋電纜集團有限公司

 

日本東北大學和東京大學的一個聯合研討小組初次用家用防蟲劑質料——大環狀有機分子萘,開宣布一種全固體鋰離子電池的負電極資料。用這種新資料(CNAP)制成的負極電容量比石墨電極高兩倍,且經過65次沖放電后仍能堅持本來的大容量狀況。

 

  可充電鋰離子電池已成為日子中不行短少的儲能技能,手機、筆記本電腦、電動汽車等都離不開鋰離子電池?,F在,在各種充電電池中,鋰離子電池可以供給的電容量最大。因為市場需求巨大,各國研討者爭相開發鋰離子電池的根底資料,而負電極資料特別受到重視。

 

  石墨以其重量輕、容量大的特色,成為負電極資料的首選。最近,以石墨烯和碳納米管為代表的納米碳新資料的呈現,使負電極碳素資料的電容量擴容了2倍至3倍。但納米碳是各種結構體的混合物,科學家現在還沒澄清其完成大容量化的原理,這成為限制納米碳負電極開展的妨礙。

 

  聯合研討小組開宣布的CNAP,是經過在分子中心部分隔納米級小孔,使大環狀有機分子成為鋰離子電池的大容量電極資料?,F在尚沒有運用大環狀有機分子作為鋰離子電池負極的先例。研討小組還發現,制造大容量鋰電池的隱秘在于分子資料內加工的細孔,依據這一發現,研討人員使本來用來作防蟲劑的萘經化學處理后轉換為大容量電池資料。

 

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