| Structure and electrochemical properties of LiCoO_2 synthesized by microwave heating |
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| 作者姓名： | 胡国荣 廖刚 彭忠东 肖劲 张新龙 禹筱元 |
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| 作者单位： | School of Metallurgical Science and Engineering，Central South University，Changsha 410083，China，Institute of Materials Science and Engineering，China University of Geosciences，Wuhan 430074，China，School of Metallurgical Science and Engineering，Central South University，Changsha 410083，China，School of Metallurgical Science and Engineering，Central South University，Changsha 410083，China，School of Metallurgical Science and Engineering，Central South University，Changsha 410083，China，School of Metallurgical Science and Engineering，Central South University，Changsha 410083，China |
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| 摘 要： | 1 INTRODUCTIONSinceSonycorporationproducedthefirstLi ionbatteryin 1990 1] ,therehasbeenanincreasinginter estinthedevelopmentofthiskindofpowersource .Asonekindofcathodematerial,whichplaysacriti calroleinaLi ionbattery ,LiCoO2 withsomemarkedadvantages,suchashighenergydensity ,highdis chargevoltage ,goodcyclingperformance ,is pro ducedcommerciallyandusedwidelyinvariouselec tronicdevices .InordertogetLiCoO2 materialwhichhasgoodperformancesinelectrochemistry ,researchershavetrieddifferent…
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Structure and electrochemical properties of LiCoO2 synthesized by microwave heating |
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| HU Guo-rong,LIAO Gang,PENG Zhong-dong,XIAO Jin,ZHANG Xin-long,YU Xiao-yuan.Structure and electrochemical properties of LiCoO_2 synthesized by microwave heating[J].Journal of Central South University of Technology,2004,11(3). |
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| Authors: | HU Guo-rong LIAO Gang PENG Zhong-dong XIAO Jin ZHANG Xin-long YU Xiao-yuan |
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| Affiliation: | HU Guo-rong~1,LIAO Gang~2,PENG Zhong-dong~1,XIAO Jin~1,ZHANG Xin-long~1,YU Xiao-yuan~1 |
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| Abstract: | Microwave synthesis method was applied to the fast preparation of LiCoO2. The structure of the synthesized oxides was analyzed by using X-ray diffraction. Only single-phase LiCoO2 was obtained. Electrochemical behaviors of LiCoO2 were investigated by charge-discharge cycling properties in the voltage range of 3.00 - 4.35 V (vs Li). The results show that the prepared LiCoO2 powders calcinated at 900 ℃ for 120 min exhibit an initial retained even after 10 cycles. But with the increase of calcinating time, its electrochemical properties deteriorate. Compared with the conventional method, the microwave heating method is simple, fast, and with high energy efficiency. |
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| Keywords: | microwave synthesis method Li-ion battery cathode material LiCoO2 |
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