电源技术
電源技術
전원기술
CHINESE JOURNAL OF POWER SOURCES
2001年
z1期
175-178
,共4页
张国昀%姜长印%万春荣%何培炯
張國昀%薑長印%萬春榮%何培炯
장국윤%강장인%만춘영%하배형
锂离子蓄电池%锂锰氧化物%尖晶石LiMn2O4
鋰離子蓄電池%鋰錳氧化物%尖晶石LiMn2O4
리리자축전지%리맹양화물%첨정석LiMn2O4
综述了锂离子蓄电池正极活性材料锂锰氧化物目前的研究进展。介绍了国内外有关尖晶石LiMn2O4、无定形二氧化锰、层状m-LiMnO2和盐岩o-LiMnO2的研究工作。掺杂和表面处理是提高尖晶石LiMn2O4电化学性能的主要手段。无定形二氧化锰、层状m-LiMnO2和岩盐o-LiMnO2具有比尖晶石LiMn2O4更高的比容量,但有放电电压低和循环性能差的缺点。掺杂、表面处理和合成短程有序、长程无序的岩盐o-LiMnO2将成为今后锂锰氧化物材料的研究发展方向。
綜述瞭鋰離子蓄電池正極活性材料鋰錳氧化物目前的研究進展。介紹瞭國內外有關尖晶石LiMn2O4、無定形二氧化錳、層狀m-LiMnO2和鹽巖o-LiMnO2的研究工作。摻雜和錶麵處理是提高尖晶石LiMn2O4電化學性能的主要手段。無定形二氧化錳、層狀m-LiMnO2和巖鹽o-LiMnO2具有比尖晶石LiMn2O4更高的比容量,但有放電電壓低和循環性能差的缺點。摻雜、錶麵處理和閤成短程有序、長程無序的巖鹽o-LiMnO2將成為今後鋰錳氧化物材料的研究髮展方嚮。
종술료리리자축전지정겁활성재료리맹양화물목전적연구진전。개소료국내외유관첨정석LiMn2O4、무정형이양화맹、층상m-LiMnO2화염암o-LiMnO2적연구공작。참잡화표면처리시제고첨정석LiMn2O4전화학성능적주요수단。무정형이양화맹、층상m-LiMnO2화암염o-LiMnO2구유비첨정석LiMn2O4경고적비용량,단유방전전압저화순배성능차적결점。참잡、표면처리화합성단정유서、장정무서적암염o-LiMnO2장성위금후리맹양화물재료적연구발전방향。
The recent progress in the positive active materials of lithium manganese oxides for lithium-ion batteries was reviewed. The worldwide research works of spinel LiMn2O4, amorphous manganese dioxide, layered m-LiMnO2, rock salt o-LiMnO2 were introduced. Doping and surface treatment were two main methods for improving the electrochemical performance of spinel LiMn2O4. Amorphous manganese doxide, layered m-LiMnO2 and rock salt o-LiMnO2 had higher specific capacity than spinel LiMn2O4, and had disadvantages of low discharge potential and poor cycle performance. The further research work of lithium manganese oxides will be doping, surface treatment and synthesis of rock salt o-LiMnO2 which is ordered in short distance and disordered in long distance.