Study of the Reactivity of Na/Hard Carbon in Different Solvents and Electrolytes
Study of the Reactivity of Na/Hard Carbon in Different Solvents and Electrolytes
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DOI：
10.1149/2.jes111637
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发表时间：
2011-08
期刊：
影响因子：
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通讯作者：
X. Xia;M. Obrovac;J. Dahn
中科院分区：
文献类型：
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作者：
X. Xia;M. Obrovac;J. Dahn
与锂离子电池相比，钠离子电池由于其低成本和丰富的钠含量而受到人们的关注。钠不能嵌入石墨化碳中，因此纳米多孔碳是目前钠离子电池最具吸引力的负极材料。本文采用加速量热仪（ARC）研究了钠插入硬碳（下文称为Na/HC）在不同溶剂（EC、DEC、DMC、EC: DEC和EC: DMC）和电解质（NaPF6 EC: DEC和NaPF6 EC: DMC）中的反应性，并在所有ARC实验后用x射线衍射分析了Na/HC的产物。
Introduction Sodium-ion batteries are now receiving attention due to the low cost and abundance of sodium, compared to lithium [1]. Sodium cannot intercalate into graphitized carbon so nanoporous carbon is currently the most attractive negative electrode material for sodium-ion batteries [2]. In this work, the reactivity of sodium inserted hard carbon (called Na/HC below) in different solvents (EC, DEC, DMC, EC: DEC and EC: DMC) and electrolytes (NaPF6 EC: DEC and NaPF6 EC: DMC) was studied by Accelerating Rate Calorimeter (ARC) and X-ray diffraction was used to analyse the products of Na/HC after all ARC experiments.