Electrochemical hydrogen storage behaviors of ultrafine Co–P particles prepared by direct ball-milling method

Electrochemical energy storage of Co powders in alkaline electrolyte

“…Song et al [14] reported that crystalline Co-B alloys prepared by annealing an amorphous Co-B alloy containing approximately 10 wt.% B possess better reversible capacities than the amorphous alloy. Moreover, Co-B with a high composition of B [15], Co-P [16], and Co-Si [17] also presented good electrochemical energy storage properties. Cobased alloys are likely to be used as new anode electrodes in alkaline batteries.…”

Structure and electrochemical behaviors of a series of Co–B alloys

“…Some cobalt-metalloid alloys, such as cobalt boride, cobalt phosphide and cobalt silicide [15][16][17][18], have been discovered as the negative electrode, which have large discharge capacity, and may serve as a new type of energy storage medium. Much progress has been made since Mitov et al proposed that the Co-B amorphous alloy particles had about 200 mAh g −1 discharge capacity [19,20].…”

The Co-B Amorphous Alloy: A High Capacity Anode Material for an Alkaline Rechargeable Battery

“…In fact, the electrochemical reaction is based on the multi-electron redox reaction [12]. For instance, Co-based alloys as anodes in alkaline secondary batteries are primarily ascribed to the redox between Co and Co(OH) 2 [13][14][15][16][17][18][19]. Wang et al first reported that the Co-B alloy prepared via a chemical reduction method in an aqueous solution from bivalent cobalt sulfate has a reversible discharge capacity exceeding 300 mAh/g at 100 mA/g in an aqueous KOH solution [9], very close to those of conventional hydrogen storage alloys.…”