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http://dx.doi.org/10.5229/JKES.2007.10.3.184

Analyses on the Physical and Electrochemical Properties of Al2O3 Coated LiCoO2  

Chang, Youn-Han (L&F Material Co., Ltd.)
Choi, Sei-Young (Division of Applied Sciences, CheongJu University)
Publication Information
Journal of the Korean Electrochemical Society / v.10, no.3, 2007 , pp. 184-189 More about this Journal
Abstract
The importance of secondary battery industry is getting excited according to the development of battery industry as a high efficiency energy supplier of electronic machine of mobile information such as mobile phone, lap-top computer, PDA. It is rasing the interest about security of safety and high efficiency of cathode material for main part of secondary lithium battery. The cathode material which has been used like $LiCoO_2,\;LiMn_2O_4,\;LiNi_xCo_yMn_zO_2,\;LiNi_xCo_yM_zO_2$ (M=Al, Zr, Mg etc.,) the most typical material is $LiCoO_2$. But it is studying the development of substitute such as efficiency amelioration of $LiCoO_2$, thetiary element, olivine element because of the capacity of $LiCoO_2$, the matter of security; especially the betterment of efficiency, security research of safety has been actively processed in domestic and overseas about surface coating treatment of active cathode which is using oxide ($M_xO_3$). This study analyses side effect of battery according to increase of surface treatment, formation of precipitation for reagent condensation, non-reagent residue of oxide ($M_xO_3$) which is remains during the surface treatment of $LiCoO_2$; conducts study of new process, the consideration of the electrochemical property to improve oxide solution of mixing rate, mixture of surface treatment, dryness, calcinations conditionetc.
Keywords
Lithium battery; Cathode; $LiCoO_2$; Surface treatment; $Al_2O_3$;
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