中国科学院大连化学物理研究所研究员李先锋团队成功研发出70kW级高功率密度全钒液流电池单体电堆。该电堆的体积功率密度达到了130kW/m³，相较于现有技术提高了近一倍。在70kW额定功率充放电条件下，能量效率高达81.0%；在60kW恒功率充放电条件下，能量效率为82.1%。更为重要的是，经过连续稳定运行1200多个循环后，能量效率衰减率仅为1.7%。
这款新型全钒液流电池单体电堆在体积不变的条件下，将功率提高至70kW，且成本降低了40%。这有望推动全钒液流电池的商业化进程。全钒液流电池单体电堆具有高安全性、长寿命、高效率和环境友好等优点，广泛应用于电网调峰、储能、交通等领域。
英文翻译：
News title: Chinese Academy of Sciences Develops High-Power Density Vanadium Flow Battery Stack
Keywords: Vanadium flow battery, high power density, energy efficiency
News content:
A team led by researcher Xianfeng Li at the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, has successfully developed a 70kW-class high-power density vanadium flow battery stack. The stack has a volume power density of up to 130kW/m³, nearly double that of existing technologies. The energy efficiency reaches 81.0% under 70kW rated power charging and discharging conditions, and 82.1% under 60kW constant power charging and discharging conditions. More importantly, after continuous stable operation of more than 1,200 cycles, the energy efficiency degradation rate is only 1.7%.
This new vanadium flow battery stack increases power to 70kW while keeping the volume constant, and reduces costs by 40%. This有望推动全钒液流电池的商业化进程。The vanadium flow battery stack boasts high safety, long lifespan, high efficiency, and environmental friendliness, making it suitable for a wide range of applications such as peak shaving, energy storage, and transportation.
【来源】https://www.ithome.com/0/743/144.htm
Views: 2