我科学家破译锌溴液流电池长寿命“密码”

Core Insights - The research team at Dalian Institute of Chemical Physics has made significant progress in developing a new bromine-based flow battery system, achieving proof of concept for long-life zinc-bromine flow batteries [1][2] Group 1: Research Developments - The team successfully developed a novel bromine two-electron transfer reaction system, which addresses the corrosion issues associated with traditional bromine flow batteries [2] - The new system utilizes amine compounds as bromine scavengers, converting generated Br2 into brominated amine compounds, effectively reducing Br2 concentration in the electrolyte [2] Group 2: Performance Metrics - The zinc-bromine flow battery demonstrated stable operation for over 700 cycles under 40 mA cm-2 conditions, with a total lifespan exceeding 1400 hours and an energy efficiency of over 78% [2]