Morphology Effects on the Electrochemical Performance of LiNi1 − x Co x O 2
| العنوان: | Morphology Effects on the Electrochemical Performance of LiNi1 − x Co x O 2 |
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| المؤلفون: | J. C. Currie, W. Li |
| المصدر: | Journal of The Electrochemical Society. 144:2773-2779 |
| بيانات النشر: | The Electrochemical Society, 1997. |
| سنة النشر: | 1997 |
| مصطلحات موضوعية: | Renewable Energy, Sustainability and the Environment, Scanning electron microscope, Analytical chemistry, chemistry.chemical_element, Mineralogy, Quaternary compound, Condensed Matter Physics, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry.chemical_compound, chemistry, Ternary compound, X-ray crystallography, Materials Chemistry, Electrochemistry, Particle, Thermal stability, Particle size, Cobalt |
| الوصف: | LiNi 1-x Co x O 2 is being considered for use as a cathode material in commercial lithium-ion batteries because of its higher capacity and lower material cost than its end member LiCoO 2 . On the other hand, LiNi 1-x Co x O 2 has better thermal stability than its other end member LiNiO 2 . In this paper we examine the influence of particle size and particle morphology on the electrochemical behavior of LiNi 1-x Co x O 2 and the dependence of the irreversible capacity on Co content, temperature, and particle size. Coin cell performance at room temperature and at 40°C indicates that LiNi 1-x Co x O 2 with a large crystal particle size (P c ) has a low capacity fade rate. The irreversible capacity is reduced at high temperature. By optimizing particle size and cobalt content in LiNi 1-x Co x O 2 , it is possible to achieve cycle performance comparable with LiCoO 2 at room temperature and at 40°C, and have a reversible capacity (between 150 and 200 mAh/g ) substantially higher than LiCoO 2 (140 mAh/g). LiNi 1-x Co x O 2 (0.1 < x < 0.3) tested at C/1 discharge and at 40°C also shows a low capacity fade rate comparable to that of LiCoO 2 material |
| تدمد: | 1945-7111 0013-4651 |
| DOI: | 10.1149/1.1837894 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6163797b9b49a8cead986512daeec26a https://doi.org/10.1149/1.1837894 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........6163797b9b49a8cead986512daeec26a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19457111 00134651 |
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| DOI: | 10.1149/1.1837894 |