SBIR Phase I: Ultrafast Charge and Extended Life Batteries for Electric Transportation

这项小企业创新研究（SBIR）第一阶段项目的广泛影响将推动一种新型运输电池的发展。与目前主要关注能量密度最大化的电池研究相比，拟议的电池设计将在保持高能量密度的同时最大限度地提高充电速率和电池寿命。这一新的操作参数将为更小电池的设计开辟空间，从而实现更轻的重量、更低的成本和更长的使用寿命，从而实现全电动交通。此外，新的运行参数使两种新的应用得以广泛采用，(i)车辆到电网和（ii）移动即服务。相关的温室气体排放量每年将减少10亿吨以上。该项目采用新型无序岩盐Li3V2O5阳极，开发了一种具有3分钟超快充电和2万次延长循环寿命的锂电池硬币电池。本项目探索超快充电锂离子电池平台。技术目标包括：1)充电时间相当于加满今天的油箱；2)具有更高安全性的电池，可持续车辆的整个使用寿命；3)可接入电网进行可再生能源整合的车辆。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact of this Small Business Innovation Research (SBIR) Phase I project will advance a new class of batteries for transportation. The proposed battery design will maximize the rate of charge and battery lifetime while maintaining high energy density, in contrast with current battery research that primarily focuses on maximizing energy density. This new operating parameter will open the design space for smaller batteries that result in lighter weight, lower cost and longer life vehicle platforms to enable all-electric transportation. In addition, the new operating parameters enable the widespread adoption of two new applications, (i) vehicle to grid and (ii) mobility as a service. The associated reduction of greenhouse gases will be 1+ gigaton annually.The proposed project develops a lithium battery coin cell that demonstrates 3 minutes ultrafast charge and 20,000 extended cycle life performance, using the novel disordered rock salt Li3V2O5 anode. This project explores ultrafast charge lithium ion battery platforms. Technical objectives include: 1) charging times comparable to filling up today's gas tanks; 2) batteries with a higher safety profile that last the entire service life of the vehicle; 3) vehicles that can connect to the electric grid for renewables integration.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.