Electrode properties of amorphous material of Li–Co–V–O system prepared by chemical lithium insertion in CoV3O8

A Review of Chemically Induced Intercalation and Deintercalation in Battery Materials

“…This method has been employed to avoid irreversible capacity in the first cycle of CoV 3 O 8 , which exhibits a crystalline‐to‐amorphous structural transition upon its first lithiation. [ 82 ] By lithiating the material chemically with n ‐butyllithium in n ‐hexane, the amorphous phase could be directly formed, eliminating the ≈30% irreversible lithium loss of the first cycle. In orthorhombic LiMnO 2 , chemical delithiation was shown to increase capacity drastically in the first cycles.…”

CoV<sub>2</sub>O<sub>6</sub>纳米线/微米棒的制备及其在锂离子电池中的应用

“…金属钒氧化物系列中的银钒氧 化物(Silver vanadium oxide, SVO)材料已经成功实现 商业化, 广泛应用于心脏除颤器等可植入式医用一 次 电 源 , 其 他 钒 氧 化 物 材 料 如 Ag 2 V 4 O 11 [8,9] 、 LiV 3 8 O [10,11] 和CuV O 2 6 [12,13] 2 6+δ 2 [14] . Ichikawa等通过CoV O 化 学嵌锂, 制备了无定形的Li-Co-V-O体系, 其嵌锂行 为类似于电化学嵌锂 3 8 [15] . Tarascon小组合成了不同种…”

Lithium Intercalation Behavior of Cobalt Vanadium Oxide CoV[sub 3]O[sub 8] Studied on the Basis of Rietveld Analysis

“…[5][6][7][8] We have reported that cobalt vanadium oxide CoV 3 O 8 can be used as a cathode material in lithium-ion batteries. [9][10][11] CoV 3 O 8 crystallizes in the orthorhombic system Ibam and has tunnel space along the c-axis of the crystal structure. 12 It is assumed that lithium insertion in CoV 3 O 8 takes place in the tunnel space.…”

“…In the first discharge, the irreversible capacity of chemically lithiated samples, which contain the amorphous substance, is lower than that of the original CoV 3 O 8 . 11 Thus far, CoV 3 O 8 has been investigated as positive electrodes for lithium-ion batteries. If it does not react with a large number of lithium ions, then CoV 3 O 8 can function as a lithium intercalation host due to its tunnel space.…”