Test of Electrochemical Performance LiSi/LiCl-KCl-MgO/FeS2 Single Cell for a Thermal Battery Prototypel

Abstract

Thermal batteries are specially designed according to the requirements for such military applications which present the need for a high power density battery. Thermal batteries rely on an electrochemical cell to produce an electric energy from the energy released by a chemical reaction with electron transfer. A thermal battery is a non-rechargeable, single use battery that can be stored for a long time without self-discharge. The key composition of the performance of thermal batteries is the chemical reaction between an electrode and an electrolyte. The materials selected for anode, cathode, and electrolyte are also important for energy-stored capacity. In this work, the performance of electrochemical cell was investigated. The experiment was divided into 3 parts to investigate; (1) a half-cell reaction on anode which was synthesized from Li/Si; (2) a half-cell reaction on cathode which was synthesized from FeS2; and (3) a single cell which composed of the anode, cathode, and electrolyte. The charge-discharge test was used to investigate the performance of set-up electrochemical cell. The results showed voltage of 0.20 - 0.25 V on the anode, voltage of 1.6 - 1.8 V on the cathode, and the voltage of 2.66 V for the single Cell.