POWER STORAGE DEVICE

• Main Authors: YOSHIMOTO NAOKI, SUGIMASA MASATOSHI, ANDO MASAHIKO
• Format: Patent
• Language: English; Japanese
• Published: 15.12.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a large-capacity power storage device which is suitable for large-scale storage of electric power, originating from recyclable energy, and which is compact and reduced in pump power consumption.SOLUTION: A power storage device of the present invention comprises a negative electrode electrolyte-storing part, a positive electrode electrolyte-storing part, a partition wall, a negative electrode and a positive electrode. The negative electrode electrolyte-storing part contains a negative electrode electrolyte including a zinc compound which is a negative electrode active material. The positive electrode electrolyte-storing part contains a positive electrode electrolyte including an iodine or bromine compound which is a positive electrode active material. The concentration of the negative electrode active material included in the negative electrode electrolyte is 2-35 mol/L.SELECTED DRAWING: Figure 1 【課題】再生可能エネルギー由来の電力の大規模貯蔵に適したコンパクトでかつポンプ消費電力を抑えた大容量の蓄電装置を提供する。【解決手段】本発明の蓄電装置は、負極電解液貯蔵部と、正極電解液貯蔵部と、隔壁と、負極と、正極と、を備え、負極電解液貯蔵部は、負極活物質である亜鉛の化合物を含む負極電解液を収容し、正極電解液貯蔵部は、正極活物質であるヨウ素又は臭素の化合物を含む正極電解液を収容し、負極電解液に含まれる負極活物質の濃度は、２〜３５ｍｏｌ／Ｌである。【選択図】図１