Li-N2 battery discharge performances affected by discharge current density,temperature,cathode porosity and N2 solubility factor
Li-N2 battery is a new type of energy storage system with the function of electrochemical nitrogen fixation,and the electrochemical model established in the article used finite element software COMSOL coupled with multi-physics field can reveal the influence of various factors on its discharge performance.The simulation results show that;the discharge current density,temperature,cathode porosity and N2 solubility factor in the electrolyte have an effect on the discharge performance of Li-N2 battery;a larger discharge current density will reduce the voltage and capacity of the battery;cathode porosity and N2 solubility factor in the electrolyte are the key factors that affect the voltage and capacity of the battery,and increasing the cathode porosity and N2 solubility factor in the electrolyte can increase the voltage and capacity of the battery;With the temperature rising,the voltage of the discharge platform of the battery increases,but the discharge capacity is almost unaffected by temperature.
Li-N2 batteriesfinite element analysisCOMSOLdischarge process
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