Status and prospect of in situ and operando characterization of solid-state batteries,Energy & Environmental Science

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Status and prospect of in situ and operando characterization of solid-state batteries
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2021-07-27 , DOI: 10.1039/d1ee00638j
Marm B. Dixit _{1,

2,

3,

4} , Jun-Sang Park _{4,

5,

6,

7,

8} , Peter Kenesei _{4,

5,

6,

7,

8} , Jonathan Almer _{4,

5,

6,

7,

8} , Kelsey B. Hatzell _{1,

2,

3,

4,

9}

Affiliation

Electrification of the transportation sector relies on radical re-imagining of energy storage technologies to provide affordable, high energy density, durable and safe systems. Next generation energy storage systems will need to leverage high energy density anodes and high voltage cathodes to achieve the required performance metrics (longer vehicle range, long life, production costs, safety). Solid-state batteries (SSBs) are promising materials technology for achieving these metrics by enabling these electrode systems due to the underlying material properties of the solid electrolyte (viz. mechanical strength, electrochemical stability, ionic conductivity). Electro-chemo-mechanical degradation in SSBs detrimentally impact the Coulombic efficiencies, capacity retention, durability and safety in SSBs restricting their practical implementation. Solid|solid interfaces in SSBs are hot-spots of dynamics that contribute to the degradation of SSBs. Characterizing and understanding the processes at the solid|solid interfaces in SSBs is crucial towards designing of resilient, durable, high energy density SSBs. This work provides a comprehensive and critical summary of the SSB characterization with a focus on in situ and operando studies. Additionally, perspectives on experimental design, emerging characterization techniques and data analysis methods are provided. This work provides a thorough analysis of current status of SSB characterization as well as highlights important avenues for future work.

中文翻译：

固态电池原位和操作表征的现状与展望

交通运输部门的电气化依赖于对储能技术的彻底重新构想，以提供价格合理、能量密度高、耐用且安全的系统。下一代储能系统将需要利用高能量密度阳极和高压阴极来实现所需的性能指标（更长的车辆续航里程、更长的使用寿命、生产成本、安全性）。由于固体电解质的潜在材料特性，固态电池 (SSB) 是通过启用这些电极系统来实现这些指标的有前途的材料技术（即。机械强度、电化学稳定性、离子电导率）。SSB 的电化学机械降解会对 SSB 的库仑效率、容量保持率、耐久性和安全性产生不利影响，从而限制了它们的实际应用。SSB 中的固体|固体界面是导致 SSB 退化的动力学热点。表征和理解 SSB 中固体|固体界面的过程对于设计弹性、耐用、高能量密度的 SSB 至关重要。这项工作提供了 SSB 表征的全面而重要的总结，重点是原位和操作学习。此外，还提供了有关实验设计、新兴表征技术和数据分析方法的观点。这项工作提供了对 SSB 表征当前状态的彻底分析，并突出了未来工作的重要途径。

更新日期：2021-08-02

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