AVPO4F (A = Li, K): A 4 V Cathode Material for High-Power Rechargeable Batteriesстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 17 января 2017 г.
Аннотация:A novel potassium-based fluoride-phosphate, KVPO4F, adopting the KTiOPO4 (KTP) type structure is synthesized and characterized. About 85% of potassium has been electrochemically extracted on oxidation producing a cathode material with attractive performance for Li-ion batteries. The material operates at an electrode potential near 4 V vs Li/Li+ exhibiting a sloping voltage profile, extremely low polarization, a small volume change of about 2% and excellent rate capability, maintaining more than 75% of the initial capacity at 40 C discharge rate without significant fading.