Zn-Air Battery Pack Vehicle Powertrain Range Extender with Cell Change-Out With Overall Vehicle Durability Cost

锌空气电池组车辆动力总成增程器，可更换电池，并具有车辆整体耐用性成本

• 批准号: RGPIN-2020-04149
• 负责人: Fowler, Michael
• 金额: $ 2.4万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=716174
• 关键词: Zn; Air; Battery; Pack; Vehicle

This battery electrical vehicle (BEV) research program will develop a powertrain model to design two energy storage systems (ESS) units: a smaller less costly primary lithium-ion (LiIon) battery pack, and a range-extending Zn-air battery pack. LiIon batteries have emerged as a promising solution to the energy density required for electric vehicles. However, LiIon batteries now still have high-cost sufficient energy density to make them practical for long trips: the size required to power long trips makes the powertrain design too inefficient, heavy, and costly to be widely commercial practicable. A viable solution is to employ a smaller LiIon battery for daily commuting, coupled with a high energy density range extender such as a Zn-air battery for longer trips. Zn-air batteries are promising because of this high theoretical energy density, as well as safe operation and lower-cost materials. The research program has three primary objectives: 1) Design commercial technology to increase Zn-air pack durability by designing novel cell configurations to enable scale-up. 2) Will develop a model powertrain that can accommodate a Zn-air pack, and explore the concept of changing-out' cells or modules. 3) We will develop novel techniques that allow for changing-out modules within the battery packs for increased efficiency. The proposed Zn-air battery research has been conducted on a half-cell, and the program will seek to improve the durability of a full cell while factoring the compromise between lifespan and energy density. A thicker air electrode increases battery durability, but also decreases the energy density of the pack, while a thicker Zn electrode results in higher battery capacity but a reduced cycling life. A tri-electrode configuration, where the Zn electrode for the oxygen reduction reactions and oxygen evolution reaction electrodes, has been proposed to improve cycling stability. The research will also conduct a feasibility study of cell/module change-out for Zn-air packs, as some modules lose their capacity at a faster rate than others. Instead of changing out the entire pack, it would be more economically beneficial to replace a specific module within the pack. This research will examine new techniques for pack design that allow quick cell/module change-out and determine the optimal schedule for when these services are required through a design simulation model methodology. The simulation research will focus on changing reliability and durability rates, and model degradation evaluation design to represent a realistic pack. The findings will make the long-term deployment of BEVs more economically feasible and environmentally sustainable. There is a significant demand for highly qualified students will battery manufacturing materials skills, battery degradation, and cost quality materials electrode optimization, well as the design of vehicle battery packs for vehicles in a wide field of battery mobility powertrains.

该电池电动汽车（BEV）研究计划将开发一个动力系统模型，以设计两个储能系统（ESS）单元：一个较小的成本较低的锂离子（LiIon）原电池组和一个范围扩展的锌空气电池组。锂离子电池已成为电动汽车所需能量密度的一种有前途的解决方案。然而，锂离子电池现在仍然具有高成本的足够能量密度，使其适用于长途旅行：为长途旅行提供动力所需的尺寸使得动力系统设计过于低效，笨重和昂贵，无法广泛商业化。一个可行的解决方案是采用较小的锂离子电池用于日常通勤，再加上高能量密度的增程器，如锌空气电池用于长途旅行。锌-空气电池由于其高的理论能量密度、安全的操作和低成本的材料而很有前途。 该研究计划有三个主要目标：1）设计商业技术，通过设计新的电池配置来提高锌空气包的耐用性，以实现规模扩大。2)将开发一个模型的动力系统，可以容纳锌空气包，并探讨改变了'细胞或模块的概念。3)我们将开发新技术，允许更换电池组内的模块，以提高效率。 拟议的锌空气电池研究已在半电池上进行，该计划将寻求提高全电池的耐用性，同时考虑寿命和能量密度之间的折衷。较厚的空气电极增加了电池的耐久性，但也降低了电池组的能量密度，而较厚的Zn电极导致较高的电池容量，但降低了循环寿命。已经提出了三电极配置，其中Zn电极用于氧还原反应和氧析出反应电极，以改善循环稳定性。 该研究还将对锌空气电池组的电池/模块更换进行可行性研究，因为某些模块的容量损失速度比其他模块快。代替更换整个电池组，更换电池组内的特定模块将在经济上更有利。本研究将探讨新的技术，包设计，允许快速电池/模块的变化，并确定最佳的时间表时，这些服务需要通过设计模拟模型方法。模拟研究将集中在不断变化的可靠性和耐久性率，模型退化评估设计，以代表一个现实的包。研究结果将使BEV的长期部署在经济上更加可行，环境上更加可持续。 有一个高素质的学生将电池制造材料的技能，电池降解，和成本质量材料电极优化，以及在电池移动动力系统的广泛领域的车辆电池组的设计的显着需求。