Fabrication And Performance Study Of Fabric Nickel Electrodes And Nickel-zinc Batteries

In recent years,due to the rapid development of smart wearable technology,a large number of products related to it have emerged,and the demand for matching energy storage and power supply devices has become increasingly urgent.Rechargeable Ni-zinc batteries due to environmental compatibility,security,low cost and high power density and other characteristics,is considered strong candidates could be soft power,Ni-zinc batteries can be produced for a variety of shapes,such as 2D thin film shape and one-dimensional fibrous to meet a new generation of flexible power supply flexible,safe,environmental protection,low price,high energy,long life and other aspects of the demand.Based on this,this paper,by means of electroplating nickel plated fabric(NiF)on sedimentary Ni Co LDHs nano piece with NiF@Ni Co LDHs fabric electrodes,found that when the electroplating time is 200 s preparation of NiF@Ni Co LDHs-200electrode has a good electrochemical performance fabric,It has a specific capacity of 147.22 Ah cm^-2when discharging at a current density of 1 m A cm^-2,the output of50 times of current density,fabric electrodes are still about 44.34%retention capacity,When charging and discharging at the current density of 10 m A Cm^-2,the cycle retention rate was still more than 50%after 1700 cycles.By building on NiF the micron level of Co-MOF skeleton and in situ etching on the skeleton had Ni Co LDHs nano film,with multi-stage micro/nano structure was successfully achieved NiF@Co-MOF@Ni Co LDHs fabric electrodes,found the NiF@Co-MOF@Ni Co LDHs-90 with the best electrochemical performance,It has a specific capacity of 238.67 Ah cm^-2when discharging at a current density of 1 m A cm^-2,in addition,the output of the current density increases after 50 times,The electrode has a very high capacity retention rate of 65.18%,showing excellent multiplier performance.Charging and discharging are carried out at the current density of 10 m A Cm^-2,and the cycle retention rate after 2000 times is 61.79%.The battery and the NiF@Zn fabric negative electrode were assembled into a quasi-solid fabric battery with a specific capacity of 135.77 Ah cm^-2for discharge at a current density of 5m A cm^-2and a capacity retention rate of approximately 46.08% for 1000 cycles at a current density of 10mA cm^-2.