Yun, Jin-Shik Kim, Soo Cho, Byung-Won Lee, Kwan-Young Chung, Kyung Yoon Chang, Wonyoung 2024-01-20T13:01:39Z 2024-01-20T13:01:39Z 2021-09-01 2013-02-20 0253-2964 https://pubs.kist.re.kr/handle/201004/128352 Carbon-coated Li3V2(PO4)(3)-LiMnPO4 composite cathode materials are first reported in this work, prepared by the mechanochemical process with a complex metal oxide as the precursor and sucrose as the carbon source. X-ray diffraction pattern of the composite material indicates that both olivine LiMnPO4 and monoclinic Li3V2(PO4)(3) co-exist. We further investigated the electrochemical properties of our Li3V2(PO4)(3)-LiMnPO4 composite cathode materials using galvanostatic charging/discharging tests, where our Li3V2(PO4)(3)-LiMnPO4 composite electrode materials exhibit the charge/discharge efficiency of 91.9%, while Li3V2(PO4)(3) and LiMnPO4 exhibit the efficiency of 87.7 and 86.7% in the first cycle. The composites display unique electrochemical performances in terms of overvoltage and cycle stability, displaying a reduced gap of 141.6 mV between charge and discharge voltage and 95.0% capacity efficiency after 15th cycles. English WILEY-V C H VERLAG GMBH PERFORMANCE TRANSITION Synthesis and Electrochemical Properties of Li3V2(PO4)(3)-LiMnPO4 Composite Cathode Material for Lithium-ion Batteries Article 10.5012/bkcs.2013.34.2.433 1 BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.34, no.2, pp.433 - 436 BULLETIN OF THE KOREAN CHEMICAL SOCIETY 34 2 433 436 scie scopus kci ART001742841 000316430200020 2-s2.0-84874551278 Chemistry, Multidisciplinary Chemistry Article PERFORMANCE TRANSITION Li-ion batteries Mechanochemical process Composite Li3V2(PO4)(3) LiMnPO4