Polyethylene Oxide-Based Composite Solid Electrolytes for Lithium Batteries: Current Progress, Low-Temperature and High-Voltage Limitations, and Prospects

Su, Xin; Xu, Xiao-Pei; Ji, Zhao-Qi; Wu, Ji; Ma, Fei; Fan, Li-Zhen

doi:10.1007/s41918-023-00204-7

Cited by 6 publications

(2 citation statements)

References 247 publications

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“…With increasing demands for high energy density and reliable safety for energy storage systems, solid-state Li metal batteries (SSLMBs) have garnered keen interest owing to their high specific capacity and reliable safety. − Solid polymer electrolytes (SPEs) have aroused widespread research hotspots in SSLMBs due to their low cost and good manufacturability. − Among all candidates, poly(ethylene oxide) (PEO)-based SPEs have attracted extensive attention due to their decent cation conductivity, flexible processability, and good compatibility with Li salts . Nevertheless, several challenges must be addressed before the commercial rollout of PEO-based SPEs, including low Li + conductivity, undesired Li + transference number, narrow electrochemical stability window (<3.9 V), poor mechanical properties, and the unstable Li/electrolyte interface. − …”

Section: Introductionmentioning

confidence: 99%

Balancing Charged Groups in Protein Additives: A Key to Enhancing the Performance of Polymer-Based Electrolytes in Solid-State Lithium–Metal Batteries

Tao,

Wen,

Liu

et al. 2024

ACS Sustainable Chem. Eng.

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Solid-state Li metal batteries equipped with polymer electrolytes are highly coveted for their flexibility and remarkable energy density; however, their advancement is hindered by limited ionic conductivity and poor interfacial stability. Herein, we report that protein additives can significantly improve the performance of poly(ethylene oxide)-based solid electrolytes and elucidate the ionconducting mechanism by comparing proteins with different charged groups (CGs). Positive CGs can anchor anions in Li salts to increase ion transference number but also adsorb polymer chains resulting in a decrease in ionic conductivity. Negative CGs promote the dissociation of Li salts and Li + conduction; however, it depends on the long-range protein chains. In comparison to the α-amylase with more negative CGs and bovine serum albumin (BSA) with more positive CGs, the casein with balanced groups enables the solid electrolyte to have a significantly higher Li + transference number of 0.45 and superior mechanical properties. Furthermore, it can also promote uniform Li plating and stripping, as well as the formation of a stable solid electrode−electrolyte interphase. When paired with the LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode, the batteries can still maintain a high specific capacity of 97.7 mA h g −1 after 200 cycles at a 1 C-rate, highlighting the efficacy of utilizing CGs-balanced proteins as additives in solid-state batteries.

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Section: Introductionmentioning

confidence: 99%

Balancing Charged Groups in Protein Additives: A Key to Enhancing the Performance of Polymer-Based Electrolytes in Solid-State Lithium–Metal Batteries

Tao,

Wen,

Liu

et al. 2024

ACS Sustainable Chem. Eng.

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“…Furthermore, the increasing concerns of global warm and environmental pollution lead to urgent development of nextgeneration LIBs with prolonged lifetime, superior energy density, safety, low cost, and smaller size to meet the growing requirements of rapid development of electric vehicles [5,6]. Numerous strategies have been employed to improve the electrochemical performance of LIBs, encompassing the utilization of innovative materials for anodes, cathodes, separators and electrolytes [7][8][9][10]. Although alternative materials have significantly improved the performance of LIBs, their inherent drawbacks impede the practical applications.…”

Section: Introductionmentioning

confidence: 99%

Recent advances and understanding of high-entropy materials for lithium-ion batteries

Feng,

Liu

2024

Nanotechnology

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Lithium-ion batteries (LIBs) has extensively utilized in electric vehicles and portable electronics due to their high energy density and prolonged lifespan. However, the current commercial LIBs are plagued by relatively low energy density. High-entropy materials with multiple components have emerged as an efficient strategic approach for developing novel materials that effectively improve the overall performance of LIBs. This article provides a comprehensive review the recent advancements in rational design of innovative high-entropy materials for LIBs, as well as the exceptional lithium ion storage mechanism for high-entropy electrodes and considerable ionic conductivity for high-entropy electrolytes. This review also analyses the prominent effects of individual components on the high-entropy materials’ exceptional capacity, considerable structural stability, rapid lithium ion diffusion, and excellent ionic conductivity. Furthermore, this review presents the synthesis methods and their influence on the morphology and properties of high-entropy materials. Ultimately, the remaining challenges and future research directions are outlined, aimed at developing more effective high-entropy materials and improving the overall electrochemical performance of LIBs.

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Inhibiting Dendrites by Uniformizing Microstructure of Superionic Lithium Argyrodites for All‐Solid‐State Lithium Metal Batteries

Liu,

Su,

Zhong

et al. 2024

Advanced Energy Materials

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The all‐solid‐state lithium metal battery is considered the next‐generation energy storage device with the potential to double the energy density of state‐of‐the‐art Li‐ion batteries and eliminate safety hazards. Achieving stable Li plating/stripping without dendrite propagation within the solid electrolyte is crucial for delivering the promised high energy density. In this study, through the comparison of various synthesis routes, a novel cube‐shaped microstructure in the Li5.3PS4.3ClBr0.7 argyrodite electrolyte, synthesized using the high‐speed mechanical milling followed by annealing method (BMAN‐LPSCB) is identified. The uniform microstructure allows for the production of an electrolyte pellet with significantly reduced porosity through cold pressing. The removal of defects has significantly enhanced the electrolyte's ability to inhibit dendrite formation, with a critical current density reaching 3.8 mA cm−2. The lithium symmetric cell with BMAN‐LPSCB electrolyte exhibits stable Li plating/stripping for over 150 h at a high current density and cutoff capacity of 3 mA cm−2 / 3 mAh cm−2. The all‐solid‐state Li/NCM battery utilizing the BMAN‐LPSCB electrolyte also demonstrates excellent durability, with a capacity retention of 96% over 1000 cycles at a 1C rate. This study emphasizes that the microstructure of the sulfide electrolyte is a critical factor influencing mechanically‐driven Li dendrite propagation in all‐solid‐state batteries.

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Polyethylene Oxide-Based Composite Solid Electrolytes for Lithium Batteries: Current Progress, Low-Temperature and High-Voltage Limitations, and Prospects

Cited by 6 publications

References 247 publications

Balancing Charged Groups in Protein Additives: A Key to Enhancing the Performance of Polymer-Based Electrolytes in Solid-State Lithium–Metal Batteries

Balancing Charged Groups in Protein Additives: A Key to Enhancing the Performance of Polymer-Based Electrolytes in Solid-State Lithium–Metal Batteries

Recent advances and understanding of high-entropy materials for lithium-ion batteries

Inhibiting Dendrites by Uniformizing Microstructure of Superionic Lithium Argyrodites for All‐Solid‐State Lithium Metal Batteries

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