Electric vehicles batteries for a circular economy: Second life batteries as stationary storage
Electric vehicles batteries for a circular economy: Second life batteries as stationary storage
复制标题
用于循环经济的电动汽车电池：作为固定存储的二次电池
DOI：
10.1016/j.jclepro.2022.134066
复制
发表时间：
2022
影响因子：
11.1
通讯作者：
Ashish Guhan Baskar
中科院分区：
文献类型：
--
作者：
Jagruti Thakur;Constança Martins Leite de Almeida;Ashish Guhan Baskar
到2030年，电动汽车（EV）的销量将比2019年增加6至30倍，从而导致废弃EV电池的增加。这对通过重新利用和回收EV电池来可持续地处理废物提出了挑战。在本文中，一种方法来分析电动汽车电池的使用在其整个生命周期中，根据其对循环经济的贡献。研究分为两个阶段，这是建模与混合整数线性优化。阶段1考虑EV的最佳充电策略，阶段2表示EV电池作为住宅建筑中的固定能量存储的第二寿命。为这两个阶段创建了六个场景;第一阶段包括智能充电和/或车辆到电网（V2 G），第二阶段在第一阶段增加了需求侧管理和/或光伏自耗最大化。进行敏感度分析以评估电价的影响。分析结果以评估电动汽车车主的使用寿命和经济节省。结果表明，在住宅建筑中使用二次电池可以将电动汽车电池的寿命延长3-5年，同时节省23%以上。
By 2030 the sales of electric vehicles (EV) are set to increase 6 to 30 folds compared to the levels of 2019 thereby leading to an increase of discarded EV batteries. This creates a challenge to sustainably handle the waste by repurpose and recycling the EV batteries. In this paper, a method to analyze the usage of EV batteries throughout their life cycle in light of their contributions to a circular economy is proposed. The study is divided into two stages which are modelled with mixed-integer linear optimization. Stage 1 considers the optimal charging strategy for an EV and stage 2 represents the second-life of the EV battery as stationary energy storage in a residential building. Six scenarios were created for both stages; stage 1 includes smart charging and/or Vehicle to Grid (V2G) and stage 2 adds demand side management and/or PV self-consumption maximization to stage 1. A sensitivity analysis is performed to assess the impact of electricity prices. The results are analysed to assess the operational lifetime and economic savings for an EV owner. The results show that using second-life batteries in a residentail building can extend the lifetime of an EV battery by 3–5 years while allowing savings above 23%.