Thin-film lithium-ion battery with amorphous solid electrolyte fabricated by pulsed laser deposition
Thin-film lithium-ion battery with amorphous solid electrolyte fabricated by pulsed laser deposition
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DOI：
10.1016/j.elecom.2004.02.010
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发表时间：
2004-04-01
影响因子：
5.4
通讯作者：
Sata, N
中科院分区：
文献类型：
--
作者：
Kuwata, N;Kawamura, J;Sata, N
制备并表征了由非晶态Li2O-V2O5-SiO_2固体电解液(LVS%晶态LiCoO2正极和非晶态SnO负极)组成的固态薄膜电池。所有薄膜都是用脉冲激光沉积技术制备的。非晶态LVSO薄膜表面光滑致密，无针孔，成分分析为Li2.2V0.54Si0.46O3.4。用阻抗谱测得该薄膜在25℃时的离子电导率为2.5×10~(-7)S厘米~(-1)，激活能为0.54 eV。薄膜电池可以在充电前在开放的环境中操作。电池在充满电时的开路电压约为2.7V，在0至3.3V之间的100次充放电循环中具有良好的可逆性。(C)2004 Elsevier B.V.版权所有。
Solid-state thin-film batteries consisting of an amorphous Li2O-V2O5-SiO2 solid electrolyte (LVS% crystalline LiCoO2 cathode and amorphous SnO anode were fabricated and characterized. All the thin-films were prepared by pulsed laser deposition technique. The amorphous LVSO thin-film has a smooth and dense surface without any pinhole, whose composition was analyzed to be Li2.2V0.54Si0.46O3.4. The ionic conductivity of the LVSO film is estimated by impedance spectroscopy to be 2.5 x 10(-7) S cm(-1) at 25 degreesC with activation energy of 0.54eV. The thin-film battery can be handled in open atmosphere before charging. The battery exhibits an open circuit voltage at full charge of about 2.7 V, and a good reversibility on charge-discharge cycling over 100 cycles between 0 and 3.3 V. (C) 2004 Elsevier B.V. All rights reserved.