结构量身定制的纳米复合材料吸收剂,使高能量密度的热化学储存在电动汽车应用的电热库中成为可能
Waseem Aftab1, Muhammad Khurram1, Qiqiu Huang1
1Birmingham Centre for Energy Storage (BCES) & School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK. w.aftab@bham.ac.uk.
Materials horizons
|February 3, 2026
概括
电动汽车 (EV) 可以在极端天气下显著扩大其行驶距离,使用创新的电热银行. 该系统有效地管理机气候和电池温度,提高电动汽车的性能并减少能源损耗.
科学领域:
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
- 汽车工程 汽车工程
背景情况:
- 由于气候控制能源需求 (高达54%) 和电池低效率 (约54%) 的原因,电动汽车 (EV) 在极端天气中面临着显著的行驶距离减少. 20%). 这是一个很好的方法.
- 有效的热管理对于保持电动汽车性能和续航里程至关重要,尤其是在不利的温度条件下.
研究的目的:
- 建议和评估一个辅助能源,即电热银行,用于支持电动汽车的车载加热,通风和空调 (HVAC) 和电池热管理 (BTM).
- 为热化学储存 (TCS) 系统开发和表征一种先进的吸收材料,能够进行高效的热管理.
主要方法:
- 开发一种使用微波驱动,快速充电热化学存储方法的TCS系统.
- 在微观和宏观结构的多孔矩阵内封闭一个TCS盐,以创建一个先进的吸附材料.
- 测试和描述吸收材料的吸收能力,速度和能量密度,以及原型系统的能量和功率密度.
主要成果:
- 优化的吸附剂材料实现了高吸附能力 (3.96 g g-1) 和创纪录的材料级能量密度 (10,426 kJ g-1 在90% RH).
- 原型电子热库显示了超高的能量密度 (2135Wh-1),以及显著的加热功率密度 (2.96kW-1) 和冷却功率密度 (3.016kW-1).
- 理论评估表明,电热银行可以在冬季将电动汽车的行驶距离扩大约30%,夏季扩大20%.
结论:
- 开发的e-thermal bank,由一种新的吸收材料提供动力,为在极端天气下减轻电动汽车续航里程损失提供了可行的解决方案.
- 该技术有效地管理机气候和电池温度,提高了电动汽车的整体效率和可用性.
- 电热银行的表现表明,在全球范围内改善电动汽车的实用范围的巨大潜力.
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