Cationic Conductive Electrolyte Membrane and Energy Storage Device using thereof

• Main Authors: PARK, MI JUNG, LIM, MIN HWA, JUNG, HO YOUNG
• Format: Patent
• Language: English; Korean
• Published: 07.11.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention is a bsPPO polymer having the following structural formulas as a unit structure. At least one unit structure exists in the bsPPO polymer, and the total number of the unit structures is 10 to 100,000. Further, the present invention provides an electrolyte membrane of the bsPPO polymer, which can be used in a redox flow battery and a manufacturing method of the bsPPO polymer electrolyte membrane. The polymer electrolyte membrane according to the present invention has characteristics that transferring of protons is excellent, permeability of vanadium cations is low, and selectivity is high. Further, there are advantages that the manufacturing method according to the present invention is environmentally friendly, and has low manufacturing costs. 본 발명은 하기 구조식을 단위 구조로 갖는 bsPPO 고분자이다.여기서 bsPPO 고분자 내에 상기 단위 구조는 각각 적어도 1개 이상 존재하며 상기 단위 구조의 전체 수는 10 이상 100,000 이하이다. 또한 본 발명은 레독스 흐름 전지에 활용할 수 있는 상기 bsPPO 고분자 전해질 막 및 이의 제조방법을 제공하고자 한다. 본 발명에 따른 고분자 전해질 막은 프로톤 전달이 우수하면서 바나듐 양이온 투과도는 낮고 선택성은 높은 특징이 있다. 또한 제조 공정이 친환경적이고 제조 단가도 낮은 장점이 있다.