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通过糖和多烯胺的协同效应调节键,以获得具有广泛温度范围的稳定阳极

Yunlin An¹, Chang Shu¹, Yunqing Liu¹

¹School of Environmental and Materials Engineering, Yantai University, Yantai 264005, China.

|March 12, 2025

概括

研究人员开发了一种新的水凝和糖策略,以稳定离子电池中的阳极. 这种方法在广泛的温度范围内提高了性能,克服了树石问题,以获得更安全,更持久的能量存储.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

离子电池由于低成本和高安全性,对储能充满希望.
较差的阳极稳定性 (树突,副作用) 和有限的温度范围阻碍了应用.
水性电解质中的强键网络有助于性能限制.

研究的目的:

开发一种提高水性离子电池中阳极稳定性和性能的策略.
为了解决树石的形成,副作用和广泛的温度范围的操作.
创建一个稳定的电解质,以提高离子电池的寿命.

主要方法:

聚烯胺水凝与糖糖的协同组合.
电解质和阳极接口的实验和理论分析.
在各种条件下测试Zn//Zn-对称和Zn//VO2充满电池.

主要成果:

协同效应调节Zn2+溶解和键网络.
由活性水引起的界面副作用的抑制.
有效地减轻阳极腐蚀和树的生长.
/对称电池在室温下实现了>6240小时的循环.
在0°C (10,000个周期) 和-10°C (>3970小时) 时,Zn//VO2充电池表现出稳定的循环运行.

结论:

聚烯胺水凝和糖的策略有效地稳定了阳极.
这种方法使离子电池能够在广泛的温度范围内稳定运行.
为开发用于水性离子电池的低成本,广泛温度范围的电解质提供了可行的战略.

关键词:

水性离子电池水性离子电池水凝电解质的电解质通过键结合,形成键.有协同效应的效应.温度范围广泛的温度范围.

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