This title appears in the Scientific Report :
2020
Please use the identifier:
http://hdl.handle.net/2128/24351 in citations.
Please use the identifier: http://dx.doi.org/10.1016/j.jpowsour.2020.227726 in citations.
Morphology-controllable synthesis of LiCoPO4 and its influence on electrochemical performance for high-voltage lithium ion batteries
Morphology-controllable synthesis of LiCoPO4 and its influence on electrochemical performance for high-voltage lithium ion batteries
LiCoPO4 is a cathode material for 5V lithium ion batteries, but in practice it often suffers from the poor electrochemical performance due to its intrinsically slow ionic diffusion. Herein, various LiCoPO4 materials with different morphology, including unstructured nanoparticle, nanorod and microrod...
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Personal Name(s): | Wu, Xiaochao (Corresponding author) |
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Meledina, Maria / Tempel, Hermann / Kungl, Hans / Mayer, Joachim / Eichel, Rüdiger-A. | |
Contributing Institute: |
Materialwissenschaft u. Werkstofftechnik; ER-C-2 Grundlagen der Elektrochemie; IEK-9 |
Published in: | Journal of power sources, 450 (2020) S. 227726 |
Imprint: |
New York, NY [u.a.]
Elsevier
2020
|
DOI: |
10.1016/j.jpowsour.2020.227726 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Electrochemical Storage |
Link: |
Published on 2020-01-29. Available in OpenAccess from 2022-01-29. Published on 2020-01-29. Available in OpenAccess from 2022-01-29. |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1016/j.jpowsour.2020.227726 in citations.
LiCoPO4 is a cathode material for 5V lithium ion batteries, but in practice it often suffers from the poor electrochemical performance due to its intrinsically slow ionic diffusion. Herein, various LiCoPO4 materials with different morphology, including unstructured nanoparticle, nanorod and microrod shape, have been synthesized by solvothermal methods and a subsequent annealing process in air. Electrochemical analysis shows that the controllable morphology has an influence in electronic and ionic pathways, thus affects the electrochemical performance. The nanorod shape LiCoPO4 shows the largest discharge capacity, the best rate capability and best cycling stability. Furthermore, the apparent Li+ ion diffusion coefficients of LiCoPO4 samples were determined to investigate the influence of particle shape and the orientation on the Li+ ions migration. |