Cost and Economic Analysis of a Polymer Sealed Planar Na-NiCl2 Battery for ESS

Abstract

In order to commercialize the battery-based ESS, it is necessary to consider not only the technical characteristics of stability and long life, but also the economic characteristics of manufacturing cost. This study aims to analyze the manufacturing cost of a polymer sealed planar Na-NiCl2 battery that is currently being researched and developed for safe, long life and untra low cost energy storage and to predict economic efficiency.Manufacturing cost analysis was calculated by dividing a number of technically feasible alternatives for each layer of cells, modules, packages, and applications into fixed, variable, and indirect costs. The economic feasibility analysis calculated the cost-benefit ratio by comparing the cost of the next 10 years and the purchase price and purchase plan of the ESS consumer derived from the manufacturing cost analysis. Data required for manufacturing cost analysis and economic analysis include public data such as power consumption patterns and weather data, as well as internal data from research and development institutions such as material and processing costs, as well as external data from suppliers, consumers and competitors. This study obtained relevant data by intensively interviewing the research and development personnel of Na-NiCl2 battery and the stakeholders located in the supply chain of this battery, and utilized secondary data already processed and published, such as the London Metal Exchange and the Statistics Korea.As a result of analysis, we found that the proposed ESS based on a polymer sealed planar Na-NiCl2 battery has a comparative advantage economically compared to the competitive LiB-based ESS and ZEBRA ESS. Looking at the results of this study, we expect to be able to commercialize safe, long life and untra low cost energy storage in the near future.