中山大学学报(自然科学版)
中山大學學報(自然科學版)
중산대학학보(자연과학판)
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI
2007年
z1期
95-96,99
,共3页
锂离子电池%球形正极材料%LiNi0.7Co0.2Al0.1O2%融盐包裹法
鋰離子電池%毬形正極材料%LiNi0.7Co0.2Al0.1O2%融鹽包裹法
리리자전지%구형정겁재료%LiNi0.7Co0.2Al0.1O2%융염포과법
lithium ion battery%spherical cathode material%LiNi0.7Co0.2Al0.1O2%melting-salt coating process
以球形Ni(OH)2为核心原料,Al(NO3)3·9H2O、Co(NO3)2·6H2O 和LiNO3为包裹原料,采用融盐包裹法在空气中煅烧合成了单相固溶体LiNi0.7Co0.2Al0.1O2.用XRD研究了合成产物的物相和结构,用SEM研究了合成产物的形貌,用电池性能测试仪研究了合成产物的电化学性能.实验结果表明,合成产物具有α-NaFeO2型层状有序结构、球状形貌和良好的电化学性能.
以毬形Ni(OH)2為覈心原料,Al(NO3)3·9H2O、Co(NO3)2·6H2O 和LiNO3為包裹原料,採用融鹽包裹法在空氣中煅燒閤成瞭單相固溶體LiNi0.7Co0.2Al0.1O2.用XRD研究瞭閤成產物的物相和結構,用SEM研究瞭閤成產物的形貌,用電池性能測試儀研究瞭閤成產物的電化學性能.實驗結果錶明,閤成產物具有α-NaFeO2型層狀有序結構、毬狀形貌和良好的電化學性能.
이구형Ni(OH)2위핵심원료,Al(NO3)3·9H2O、Co(NO3)2·6H2O 화LiNO3위포과원료,채용융염포과법재공기중단소합성료단상고용체LiNi0.7Co0.2Al0.1O2.용XRD연구료합성산물적물상화결구,용SEM연구료합성산물적형모,용전지성능측시의연구료합성산물적전화학성능.실험결과표명,합성산물구유α-NaFeO2형층상유서결구、구상형모화량호적전화학성능.
A spherical cathode material LiNi0.7Co0.2Al0.1O2 was synthesized by melting-salts coating process in air using spherical Ni(OH)2 as core material, Al(NO3)3·9H2O、Co(NO3)2·6H2O and LiNO3 as coating materials. The crystal structure, morphology and electrochemical performance of the synthesized powder were characterized by XRD, SEM and charge-discharge experiments. The experimental results show that the synthesized powder LiNi0.7Co0.2Al0.1O2 has the α-NaFeO2 type ordered layered structure, spherical morphology and excellent electrochemical performance.
