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| Hauptseite > Publikationsdatenbank > Investigation of the Li-Co antisite exchange in Fe-substitued LiCoPO4 cathode for high-voltage lithium ion batteries > print |
| Hauptseite > Publikationsdatenbank > Investigation of the Li-Co antisite exchange in Fe-substitued LiCoPO4 cathode for high-voltage lithium ion batteries > print |
| 001 | 864400 | ||
| 005 | 20240709082153.0 | ||
| 024 | 7 | _ | |a 10.1016/j.ensm.2019.07.004 |2 doi |
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| 100 | 1 | _ | |a Wu, Xiaochao |0 P:(DE-Juel1)168420 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Investigation of the Li-Co antisite exchange in Fe-substitued LiCoPO4 cathode for high-voltage lithium ion batteries |
| 260 | _ | _ | |a Amsterdam |c 2019 |b Elsevier |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Carbon coated olivine Pnma LiCoPO4 (LCP/C) and Fe-substituted LiCo0.8Fe0.2PO4 (LCFP/C) were synthesized by a solvothermal method and their structural features and electrochemical properties were investigated. The electrochemical performance of LCFP/C is better than that of LCP/C, owing to the partial substitution of Co by Fe which effectively suppresses the increasement of antisite exchange between Li+ and Co2+ ions within the structure during cycling, despite a similar amount of Li–Co antisite exchange in pristine LCP/C and LCFP/C samples. Furthermore, direct visualization of Co in Li sites in the pristine samples and after 50 cycles was achieved through high-resolution scanning transmission electron microscopy for both LCP/C and LCFP/C. It was found that LCP/C locally formed a new cation-ordered structure after cycling due to the Li–Co antisite exchange, while the structure of LCFP/C remains almost the same. This study provides direct evidence that Fe substitution reduced the Li–Co exchange and improved the electrochemical cycling life of the LiCoPO4 cathode for high-voltage lithium ion batteries. |
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| 773 | _ | _ | |a 10.1016/j.ensm.2019.07.004 |g Vol. 22, p. 138 - 146 |0 PERI:(DE-600)2841602-8 |p 138 - 146 |t Energy storage materials |v 22 |y 2019 |x 2405-8297 |
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