Solid-state batteries: from 'all-solid' to 'almost-solid'

Article Multidisciplinary Sciences

Tailoring polymer electrolyte ionic conductivity for production of low- temperature operating quasi-all-solid-state lithium metal batteries

Zhuo Li et al.

Summary: This article reports a quasi-solid-state polymer electrolyte that can improve interfacial charge transfer and enable stable lithium metal cell operation even at -30 degrees C. The electrolyte exhibits an ionic conductivity of 2.2 x 10(-4) S cm(-1) at -20 degrees C and inhibits the growth of dendrites on the lithium metal electrode, leading to a dual-layered solid electrolyte interphase formation.

NATURE COMMUNICATIONS (2023)

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Review Chemistry, Physical

Hybrid solid electrolyte-liquid electrolyte systems for (almost) solid-state batteries: Why, how, and where to?

Henry M. M. Woolley et al.

Summary: All-solid-state batteries (SSBs) offer improved safety and higher energy densities, but face issues such as decomposition of the solid electrolyte and sluggish transport of lithium ions. Combining solid and liquid electrolytes can potentially overcome these problems, but the formation of the solid liquid electrolyte interphase (SLEI) may increase the cell's impedance. The chemical stability of the solid electrolyte with respect to the liquid electrolyte is crucial in forming a stable SLEI.

JOURNAL OF MATERIALS CHEMISTRY A (2023)

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Review Energy & Fuels

Challenges in speeding up solid-state battery development

Juergen Janek et al.

Summary: Despite recent efforts to establish solid-state batteries as a safe and stable storage technology, challenges regarding long-term performance, power and economic viability still remain. This review highlights the importance of fast-conducting solid electrolytes, high-performance anodes, and diverse research approaches for the development of solid-state batteries. The authors emphasize the need to address the remaining key challenges for full-scale commercialization and implementation.

NATURE ENERGY (2023)

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Review Chemistry, Physical

Are solid-state batteries safer than lithium-ion batteries?

Alex M. Bates et al.

Summary: This work presents the first thermodynamic models to evaluate the heat release of both solid-state and Li-ion batteries under failure scenarios. It is found that all-solid-state batteries can reach significantly higher temperatures than conventional Li-ion batteries, which could lead to fire accidents.

JOULE (2022)

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Review Chemistry, Physical

Silicon as Emerging Anode in Solid-State Batteries

Hanyu Huo et al.

Summary: This paper summarizes the current achievements and challenges of silicon anodes in solid-state batteries, and provides a perspective for solid-state batteries with high energy density.

ACS ENERGY LETTERS (2022)

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Review Chemistry, Multidisciplinary