常熟理工学院学报
常熟理工學院學報
상숙리공학원학보
Journal of Changshu Institute of Technology
2015年
4期
64-67
,共4页
钠离子电池%Na2Ti3O7%碳纳米管%复合材料
鈉離子電池%Na2Ti3O7%碳納米管%複閤材料
납리자전지%Na2Ti3O7%탄납미관%복합재료
sodium-ion batteries%Na2Ti3O7%CNT%nano composite
用低温水热法合成具有高电导率的Na2Ti3O7@CNT纳米复合材料,通过扫描电镜、XRD等手段表明Na2Ti3O7颗粒包覆在碳纳米管表面形成纳米复合材料. 在电化学测试中Na2Ti3O7@CNT可逆容量达到210 mAh g-1,并在30C高倍率放电情况下,比容量仍然保持在50 mAh g-1,表明Na2Ti3O7@CNT作为钠离子电池负极材料具有很好的容量和倍率性能.
用低溫水熱法閤成具有高電導率的Na2Ti3O7@CNT納米複閤材料,通過掃描電鏡、XRD等手段錶明Na2Ti3O7顆粒包覆在碳納米管錶麵形成納米複閤材料. 在電化學測試中Na2Ti3O7@CNT可逆容量達到210 mAh g-1,併在30C高倍率放電情況下,比容量仍然保持在50 mAh g-1,錶明Na2Ti3O7@CNT作為鈉離子電池負極材料具有很好的容量和倍率性能.
용저온수열법합성구유고전도솔적Na2Ti3O7@CNT납미복합재료,통과소묘전경、XRD등수단표명Na2Ti3O7과립포복재탄납미관표면형성납미복합재료. 재전화학측시중Na2Ti3O7@CNT가역용량체도210 mAh g-1,병재30C고배솔방전정황하,비용량잉연보지재50 mAh g-1,표명Na2Ti3O7@CNT작위납리자전지부겁재료구유흔호적용량화배솔성능.
Na2Ti3O7@CNT nano composites with enhanced conductivity were synthesized by low temperature hy?drothermal reaction. By means of SEM and XRD methods, nano structures of Na2Ti3O7 covered by CNT were identified. Electrochemical tests show that Na2Ti3O7@CNT can deliver a reversible capacity of 210 mAh g-1, in particular, at the high rate of 30 C, specific capacity can still reach 50 mAh g-1. The results show that Na2Ti3O7@CNT nano composite has demonstrated favorable specific energy and power capability.
