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: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=747135
• 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.

这个电池电动汽车（BEV）研究项目将开发一种动力系统模型，设计两种能量存储系统（ESS）单元：一种更小、更便宜的初级锂离子（LiIon）电池组，以及一种增程锌空气电池组。锂电池已经成为一种有前途的解决方案，以满足电动汽车所需的能量密度。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动力系统设计过于低效、沉重和昂贵，无法广泛商业化。一个可行的解决方案是在日常通勤中使用较小的锂离子电池，再加上高能量密度的增程器，如锌空气电池，用于长途旅行。锌空气电池因其理论能量密度高、操作安全、材料成本低而前景广阔。该研究计划有三个主要目标：1)设计商业技术，通过设计新颖的电池配置来提高锌-空气电池组的耐用性，从而实现规模化。2)将开发一款可容纳锌空气电池组的动力总成模型，并探索“更换”电池或模块的概念。我们将开发新技术，允许更换电池组内的模块，以提高效率。提出的锌空气电池研究已经在半电池上进行，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。较厚的空气电极可以提高电池的耐用性，但也会降低电池组的能量密度，而较厚的锌电极可以提高电池容量，但会降低循环寿命。提出了一种三电极结构，其中锌电极用于氧还原反应和氧析反应电极，以提高循环稳定性。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，因为有些模块的容量损失速度比其他模块快。与其更换整个包，不如替换包中的特定模块，这在经济上更有利。本研究将研究电池组设计的新技术，这些技术允许快速更换电池/模块，并通过设计仿真模型方法确定需要这些服务的最佳时间表。仿真研究将侧重于改变可靠性和耐用率，以及模型退化评估设计，以代表一个真实的包。这一发现将使纯电动汽车的长期部署在经济上更加可行，在环境上更加可持续。在电池移动动力系统的广泛领域中，对高素质学生的电池制造材料技能、电池降解和成本质量材料电极优化，以及汽车电池组的设计有很大的需求。