Park, Sung Bin Park, Chang Kyoo Hwang, Jin Tae Cho, Won Il Jang, Ho 2024-01-20T16:04:45Z 2024-01-20T16:04:45Z 2021-09-05 2011-10 1598-9623 https://pubs.kist.re.kr/handle/201004/129947 This study addresses the controversial issue of the effect of metal ion doping on the electrochemical performance of LiFePO4. Metal doping is claimed to be a possible cause for the capacity improvement of LiFePO4 as carbon coating. Results obtained inthis study show that dry-milled LiFePO4 and LiFe0.9Cr0.1PO4 deliver 119 mAh g(-1) and 101 mAh g(-1), while wet-milled LiFePO4 and LiFe0.9Cr0.1PO4 deliver 149 mAh g(-1) and 138 mAh g(-1), respectively. This indicates that the capacity improvement by metal doping is due to the carbonaceous materials produced during fabrication and not by the enhancement of ion diffusion. On the other hand, cycle test results show that metal doping enhances the rate capability at high C-rates by accelerating lithium ion diffusion. English KOREAN INST METALS MATERIALS RECHARGEABLE LITHIUM BATTERIES ION BATTERIES ELECTROCHEMICAL PROPERTIES ELECTRICAL-CONDUCTIVITY DOPED LIFEPO4/C CARBON PERFORMANCE COMPOSITES BEHAVIOR The Distinct Role of Transition Metal Doping for LiFePO4 Cathode Material Article 10.1007/s12540-011-1005-3 1 METALS AND MATERIALS INTERNATIONAL, v.17, no.5, pp.729 - 732 METALS AND MATERIALS INTERNATIONAL 17 5 729 732 scie scopus kci ART001609227 000300571900005 2-s2.0-84863011621 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article RECHARGEABLE LITHIUM BATTERIES ION BATTERIES ELECTROCHEMICAL PROPERTIES ELECTRICAL-CONDUCTIVITY DOPED LIFEPO4/C CARBON PERFORMANCE COMPOSITES BEHAVIOR energy storage materials mechanical milling diffusion electrochemistry electrical conductivity