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J. Korean Ceram. Soc. > Volume 45(2); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(2): 112.
doi: https://doi.org/10.4191/kcers.2008.45.2.112
Co3(PO4)2로 표면코팅한 Li[Co0.1Ni0.15Li0.2Mn0.55]O2의 리튬 2차전지용 양극재 특성
이상효, 김광만1, 구본급
한밭대학교 재료공학과
1한국전자통신연구원 IT-NT 그룹 이오닉스소자팀
Cathode Characteristics of Co3(PO4)2-Coated [Co0.1Ni0.15Li0.2Mn0.55]O2 for Lithium Rechargeable Batteries
Sang-Hyo Lee, Kwang-Man Kim1, Bon-Keup Koo
Department of Materials Engineering, Hanbat National University
1Ionics Devices Team, IT-NT Group, Electronics and Telecommunications Research Institute (ETRI)
To prepare the high-capacity cathode material with improved electrochemical performances, nanoparticles of $C0_3(PO_4)_2$ were coated on the powder surface of $Li[Co_{0.1}Ni_{0.15}Li_{0.2}Mn_{0.55}]O_2$, which was already synthesized by simple combustion method. The coated powders after the heat treatment at >$700^{circ}C$ surely showed well-structured crystalline property with nanoscale surface coating layer, which was consisted of $LiCOPO_4$ phase formed from the reaction bwtween $CO_3(PO_4)_2$ and lithium impurities. In addition, cycle performance was particularly improved by the $CO_3(PO_4)_2$-coating for the cathode material for lithium rechargeable batteries.ₒޗ⨀잖⨀vગ⨀㐣ગ⨀ࠀ⤁炧Ā炧Ā̀￿￿￿￿ޗ⨀ĀĀࠀ짵Ԃ炧Ā炧Ā̀￿￿Ā㐣ગ⨀倀烗舀育﾿缀烲舀舀硵ગ⨀￿￿￿ࠀ─짵Ԃ─짵Ԃ─ࠀ⤁炧Ā炧Ā̀￿￿硵ગ⨀聰㘂낹﾿缀Ā䂵ヨ⨀䡯֗⨀잖⨀Ȁd잖⨀잖⨀Ā 䁥잖⨀끥잖⨀᐀Āગ⨀ႝޗ⨀℀ႝޗ⨀℀Ā㐣ગ⨀ࠀꤝ➨Ā➨Ā̀￿￿㐣ગ⨀炧Āޗ⨀₞ޗ⨀ગ⨀㢣잖⨀塼ગ⨀ऀ Ā䡞誙؀Ā
Key words: Cathode material, $CO_3(PO_4)_2$, Electrochemical properly, Lithium rechageable battery
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