Cell Reports Physical Science ( IF 7.9 ) Pub Date : 2020-09-30 , DOI: 10.1016/j.xcrp.2020.100212 Matthew Li , Ming Feng , Dan Luo , Zhongwei Chen
Extreme fast charge (10 min to reach 80% state of charge) is one of the key limiting parameters preventing the widespread adoption of battery-based electric vehicles into the transportation sector. Many recent simulations and experimental-based studies have been recently published in this area with a specific focus on why extreme fast charge is challenging. These studies identified that cathode particle cracking and electrolyte transport limitation are the key barriers that have caused the well-known safety and stability problems. Interestingly, there have been very few studies that have demonstrated significant improvements toward a 10-min charge under high energy density conditions. Several strategies pertaining to electrolyte modifications (concentrated electrolyte and low viscosity additives) along with adaptive fast charging are highlighted and suggested.
中文翻译:
电动汽车新时代的快速充电锂离子电池
极速充电(10分钟即可达到80%的充电状态)是关键的限制参数之一,阻碍了基于电池的电动汽车在交通领域的广泛采用。该领域最近发表了许多最新的模拟和基于实验的研究,特别关注为何极速充电具有挑战性。这些研究表明,阴极颗粒的破裂和电解质的运输限制是导致众所周知的安全性和稳定性问题的关键因素。有趣的是,很少有研究表明在高能量密度条件下对10分钟充电有显着改善。