Enhanced polymerization interface of Ni12P5 nanowires toward high-rate and durable cathode for alkaline Ni–Zn batteries

Achieving desirable charge transport by porous frame engineering for superior 3D printed rechargeable Ni–Zn alkaline batteries

“…It further supported the superiority of our manufacturing approach as compared with previously reported conventional methods. [49][50][51] The detailed electrochemical performance of E3DP-NZABs with other pore sizes and thicknesses is shown in Fig. S13 and S14.…”

Phosphide-Enhanced Hierarchical NiMoO4 Composite in Binder-Free Ni-Electrodes for High-Capacity Aqueous Rechargeable NiZn Batteries

“…A couple of broad redox peaks are possibly generated from Faradaic reactions related to Ni 2+ /Ni 3+ . For NiMoO 4 , in alkaline electrolyte, the Faradaic reactions are suggested to proceed as follows − NiMoO 4 ↔ Ni 2 + + MoO 4 2 − Ni 2 + + 2 OH − ↔ Ni false( OH false) 2 Ni false( OH false) 2 + OH − ↔ NiOOH + H 2 normalO + e − For NiP 2 , in alkaline electrolyte, the Faradaic reactions might proceed as follows , Ni δ + + 2 OH − ↔ Ni false( OH false) 2 + ( 2 − δ ) e − Ni false( OH false) 2 + OH − ↔ NiOOH + normalH 2 O + normale − Oshitani et al have also shown that Co addition can increase the nickel oxidation state beyond +III according to Ni false( OH false) 2 + ( 1 +…”

“…Moreover, as shown in the Ragone plot (Figure f), the P(Ni, Fe)//Zn battery presents a high energy density of 962.6 Wh kg –1 at a power density of 870 W kg –1 (at 0.5 A g –1 ) and retains 77.88 Wh kg –1 at a high power density of 34800 W kg –1 (at 20 A g –1 ). Compared with other NiZn batteries based on Ni-based cathodes previously reported in the literature, such as NiMoO 4 //Zn, NiMoO 4 –NC//Zn, CC/Co@NCNTs/α-Ni(OH) 2 //Zn, NF/Ni 2 S 3 /NiS@NiCo-LDH//Zn, Ni-NiO/CC//Zn, AM-Ov-NiCo 2 O 4 /NF//Zn, NiCo 2 S 4 @ NiMoO 4 /Ni 2 P//Zn, and Ni 12 P 5 @15PANI//Zn, our battery exhibits obviously higher energy density per unit mass. These above-mentioned results demonstrate that the introduction of P can increase the specific capacity by enhancing the conductivity, and the complex overlapped framework structure can significantly improve the capacity and corresponding capacity retention by providing faster ionic transfer paths with shorter transmission distances.…”

Surface‐amorphized nickel sulfide with boosted electrochemical performance for aqueous energy storage

“…With the increase in global power consumption and extensive use of electronic devices, the research on advanced energy storage devices like Li‐ion batteries, 1,2 supercapacitors, 3 aqueous metal‐ion batteries, 4–6 solar cells, 7 fuel cells, and so forth has become a hot spot. Among them, aqueous energy storage devices, including aqueous Ni‐Zn batteries and supercapacitors, have stood out ascribed to high safety and economic friendliness, as well as high ionic conductivity of aqueous electrolytes 8–10 . In addition, supercapacitors have been paid more attention due to their merits like high power density, long service life, and rapid charge–discharge process 11–13 ; Ni‐Zn battery, as a kind of alkaline Zn‐based battery, 14 has the superiorities of high voltage plateau and energy density, low price as well as reversible oxygen/reduction kinetics 15–17 ; these advantages make supercapacitors and Ni‐Zn battery competitive in energy storage field.…”

“…Among them, aqueous energy storage devices, including aqueous Ni-Zn batteries and supercapacitors, have stood out ascribed to high safety and economic friendliness, as well as high ionic conductivity of aqueous electrolytes. [8][9][10] In addition, supercapacitors have been paid more attention due to their merits like high power density, long service life, and rapid charge-discharge process [11][12][13] ; Ni-Zn battery, as a kind of alkaline Zn-based battery, 14 has the superiorities of high voltage plateau and energy density, low price as well as reversible oxygen/reduction kinetics [15][16][17] ; these advantages make supercapacitors and Ni-Zn battery competitive in energy storage field. However, the relatively low conductivity and unmatched capacity of cathode materials have impeded their further development.…”