Optimized lithium iron phosphate for high-rate electrochemical applications
Optimized lithium iron phosphate for high-rate electrochemical applications
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DOI：
10.1149/1.1758721
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发表时间：
2004-01-01
影响因子：
3.9
通讯作者：
Le Cras, F
中科院分区：
文献类型：
--
作者：
Franger, S;Bourbon, C;Le Cras, F
本文介绍了一种新型的高度可充电的磷酸铁锂的结构和电化学性能。其作为阴极材料的行为也在基于纳米晶体Li 4 Ti 5 O 12阳极和非水液体电解质（碳酸亚乙酯/碳酸二甲酯中的1摩尔L-1 LiPF 6）的完整电力系统中进行了测试。该电池在约2 V下以非常平坦的电压曲线运行，即使在非常高的速率（4C或8 C）下，在循环时也具有非常小的容量衰减。这些特点，结合低成本和无毒性的组件，使该系统的低电压电子市场的一个有吸引力的和廉价的电源。(C)2004年电化学学会。
Structural and electrochemical properties of a new highly rechargeable lithium iron phosphate are described here. Its behavior as cathodic material was also tested in a complete power system based on a nanocrystalline Li4Ti5O12 anode and a nonaqueous liquid electrolyte (1 mol L-1 LiPF6 in ethylene carbonate/dimethyl carbonate). This cell operates with a very flat voltage profile at around 2 V, with very little capacity fading upon cycling, even at a very high rate (4C or 8C). These features, combined with the low cost and the lack of toxicity of the components, make this system an attractive and inexpensive power source for the low voltage electronic market. (C) 2004 The Electrochemical Society.