Enhancing electrochemomechanics: How stack pressure regulation affects all-solid-state batteries

Lee, Chanhee; Kim, Ji Young; Bae, Ki Yoon; Kim, Taewon; Jung, Soon-Jae; Son, Samick; Lee, Hyun-Wook

doi:10.1016/j.ensm.2024.103196

Cited by 8 publications

(2 citation statements)

References 39 publications

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“…To enhance the energy density of the cell, a higher active mass-loaded (active mass loading: 24 mg cm –2 ) NCM cathode was prepared and applied to the solid-state lithium cell by using solid electrolyte sheets. Before the cycling test, the effect of active mass loading on the cell pressure during cycling was investigated using pressiometry equipment, as illustrated in Figure S4. , Figure a shows the voltage vs time curves of the cells employing NCM cathodes with different active mass loadings and corresponding pressure changes in the cell during cycling at 0.05 and 0.1 C. A larger pressure change was observed in the high-active-mass-loaded cell due to the larger volume change of the electrodes. Therefore, a solid electrolyte sheet that can withstand a large pressure change is required when the active mass loading is high, as schematically demonstrated in Figure S5.…”

Section: Resultsmentioning

confidence: 99%

Sulfide-Based Flexible Solid Electrolyte Enhancing Cycling Performance of All-Solid-State Lithium Batteries

Hong,

Jang,

Jung

et al. 2024

ACS Appl. Energy Mater.

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Research into all-solid-state lithium batteries (ASSLBs) is actively underway owing to their high energy density and enhanced safety features. To successfully advance the development of high-energy-density ASSLBs, manufacturing a thin and flexible solid electrolyte with both high ionic conductivity and mechanical strength is crucial. In this study, we present a sulfide-based (Li 6 PS 5 Cl, argyrodite) flexible solid electrolyte sheet utilizing poly(ethylene-co-methyl acrylate-co-glycidyl methacrylate) (EMG) terpolymer for ASSLB applications. This electrolyte exhibited a high ionic conductivity of 1.88 mS cm −1 at 60 °C and demonstrated good interfacial stability with lithium metal. The solid-state cell, comprising a Li−In anode, an EMG-based solid electrolyte sheet, and a LiNi 0.9 Co 0.05 Mn 0.05 O 2 cathode, delivered a substantial discharge capacity of 229.2 mA h g −1 at 0.05 C and 60 °C, equivalent to a high areal capacity of 5.5 mA h cm −1 . A comparative analysis with a cell assembled using a nitrile butadiene rubber-based solid electrolyte sheet revealed superior cycling performance in terms of cycling stability and high-rate performance.

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Section: Resultsmentioning

confidence: 99%

Sulfide-Based Flexible Solid Electrolyte Enhancing Cycling Performance of All-Solid-State Lithium Batteries

Hong,

Jang,

Jung

et al. 2024

ACS Appl. Energy Mater.

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“…The applied stack pressure outside cells is a necessary factor to provide good consistent physical contact between SSE and anode by preventing the apparition of voids [76]. Meng's team investigated the effects of applied stack pressure on LMA based on LPSC SSE in a closed cell setup [77]. The applied stack pressure of 75 MPa caused immediate short-circuiting.…”

Section: Pnmamentioning

confidence: 99%

Recent advances in solid-state lithium batteries based on anode engineering

Zheng,

Shen,

Guo

et al. 2024

Nano Research Energy

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Since limited energy density and intrinsic safety issues of commercial lithium-ion batteries (LIBs), solid-state batteries (SSBs) are promising candidates for next-generation energy storage systems. However, their practical applications are restricted by interfacial issues and kinetic problems, which result in energy density decay and safety failure. This review discusses the formation mechanisms of these issues from the perspective of typical solid-state electrolytes (SSEs) and provides an overview of recent advanced anode engineering for SSBs based on representative anodes including Li metal, graphite-based, and Si-based anodes, summarizing the advantages and problems of each strategy. The development of the anode-free batteries concept is demonstrated as well. Finally, recommendations are proposed for the potential directions in future research in anode engineering for SSBs.

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Deciphering Advanced Sensors for Life and Safety Monitoring of Lithium Batteries

Wang,

Zhang,

Xie

et al. 2024

Advanced Energy Materials

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The rapid commercialization of lithium batteries greatly promotes the development of the electric vehicles, renewable energy storage systems and consumer electronics. The service lifetime and safety of lithium batteries are extremely concerned by terminal customers. Sensor technology is powerful in monitoring the physical and chemical signals of lithium batteries, serving for the state of health and safety warning/evaluation of lithium batteries and guide for future development of battery materials. In this review, the primary concern is the generation mechanisms of different physicochemical signals in lithium batteries. Then, the sensing methods and sensing designs according to different physicochemical signals of lithium batteries is summarized. Finally, some perspectives are provided to guide further development of sensing technology for lithium batteries. This review will greatly accelerate the terminal application of advanced sensors, whether in commercial products or scientific research.

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Enhancing electrochemomechanics: How stack pressure regulation affects all-solid-state batteries

Cited by 8 publications

References 39 publications

Sulfide-Based Flexible Solid Electrolyte Enhancing Cycling Performance of All-Solid-State Lithium Batteries

Sulfide-Based Flexible Solid Electrolyte Enhancing Cycling Performance of All-Solid-State Lithium Batteries

Recent advances in solid-state lithium batteries based on anode engineering

Deciphering Advanced Sensors for Life and Safety Monitoring of Lithium Batteries

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