A practical and effective strategy for the thin and uniform carbon layer onto LiCoPO4 cathode surface in terms of the rate capability and cycle stability
Yazarlar (4)
Ahmet Örnek
Kafkas Üniversitesi, Türkiye
Doç. Dr. Ali YEŞİLDAĞ Kafkas Üniversitesi, Türkiye
Mustafa Can Sakarya Üniversitesi, Türkiye
Prof. Dr. Selçuk Aktürk Muğla Sıtkı Koçman Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Materials Research Bulletin (Q2)
Dergi ISSN 0025-5408 Dergi Bilgileri (2016)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 11-2016
Cilt / Sayı / Sayfa 83 / 1 / 1–11 DOI 10.1016/j.materresbull.2016.04.019
Makale Linki https://www.sciencedirect.com/science/article/pii/S0025540816301787
UAK Araştırma Alanları
Analitik Kimya
Özet
Nanoscale pure LiCoPO4 and LiCoPO4/C materials were successfully synthesized as excellent quality cathode materials for high-voltage and high energy density lithium-ion applications. These materials are simply produced by combined magnetron power and the solvothermal method followed by heat treatment. Analyses show that distribution of a surface coated with carbon, 5⿿7 nm thickness by tannic acid and nanostructured LiCoPO4/C cathode exhibits a higher and stable reversible capacity (155.2 mAh g⿿1) with the long voltage plateau nearly 4.8 V. Furthermore, this cathode exhibits capacity retention as 91% after 80 cycles and this value makes it one of the highest of those reported to date. The LiCoPO4/C electrode is produced simultaneously under high pressure and using microwave energy and this has an influence on excellent cycling behavior. The obtained results prove that a production dynamics …
Anahtar Kelimeler
Electrochemical properties | Electronic materials | Energy storage | LiCoPO4 cathode | Solvothermal | Transmission electron microscopy (TEM)