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Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

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在液体金属上稳定固体电解质间相,通过动态凝衍生碳框架封装.

Hanning Zhang^1,2, Wei Zhang^1,2, Dan Luo³

¹Jiangsu Key Laboratory of Advanced Metallic Materials, Nanjing, 211189, China.

Advanced materials (Deerfield Beach, Fla.)

|March 23, 2024

概括

此摘要是机器生成的。

在水凝衍生碳框架中封装的优特基-液体金属 (EGaIn-LM) 纳米粒子改善了离子电池阳极. 这一策略通过减轻电解质消耗和SEI层问题来提高稳定性和性能.

关键词:

凝衍生的碳框架在现场封装封装.液体金属阳极是一种液体金属阳极.固体电解质接口的接口是固体电解质.

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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
纳米技术纳米技术

背景情况:

欧特克-液体金属 (EGaIn-LM) 是离子电池 (LIB) 的一个有前途的阳极材料,因为它具有很高的容量和自我愈合特性.
挑战包括电解质消耗和固体电解质接口 (SEI) 破裂,这是由循环过程中LM流动性和相位过渡引起的.

研究的目的:

制定一项战略,以稳定EGaIn-LM在LIB阳极的强大矩阵内.
研究液体/固体界面上的SEI层的形成和结构演变.

主要方法:

由EGaIn-LM启动的in-situ水凝组装,然后进行化,形成一个由水凝衍生的碳框架 (HDC),封装LM纳米粒子.
电化学测试以评估速度能力和长期循环能力.
分析SEI层的组成和结构.

主要成果:

在HDC框架内对LM纳米粒子的均限制有效地减轻了体积膨胀,并增强了电子传输.
设计的阳极表现出优越的速率能力和长期循环能力.
确定了一种双层SEI结构,其中包括一个外部LiF层和一个内部LiGaO_x层,表明LM在SEI形成中的作用和碳框架的保护作用.

结论:

HDC矩阵为稳定LIBs中的EGaIn-LM阳极提供了一个有效的策略.
该研究提供了关于SEI在液体/固体接口的形成和演变的见解,这对于设计稳定的LIB至关重要.