A quasi-solid-state CGPE (quasi-solid-state composite gel polymer electrolyte) with high ionic conductivity, mechanical robustness, thermal stability, and wide electrochemical stability windowis designed to strengthen the performance and reliability of anode-free cells.
Highlights A porous organic cage (POC)-based quasi-solid-state electrolyte (QSSE) with cavity-induced anion-trapping effect was rationally designed to enable the stable operation of Li-metal batteries.
Quasi-solid-state electrolytes (QSSEs) stand out for mitigating the conflict between electrochemical and mechanical performance.
In this work, an innovative quasi-solid-state Mg-ion battery (QSMB) with a high energy density of 264 W·hour kg −1 was developed. Quasi-solid-state electrolytes have gained tremendous research attention in recent years as a safer, more stable, and leakproof alternative to conventional liquid organic electrolytes in Li-ion batteries.
Herein, in a timely response to this exciting development, we look into the recent advances in quasi-solid-state fiber-shaped aqueous ESDs, by providing a comprehensive and critical overview of new design principles, key progress in both materials and devices, and system integrations.
We designed a quasi-solid-state magnesium-ion battery (QSMB) that confines the hydrogen bond network for true multivalent metal ion storage. The QSMB demonstrates an energy density of 264 W·hour kg −1, nearly five times higher than aqueous Mg-ion batteries and a voltage plateau (2.6 to 2.0 V), outperforming other Mg-ion batteries.
However, prior studies on quasi-solid-state batteries (QSSBs) have predominantly utilized cathodes with low active material loading, falling short of practical application demands. Nickel-rich cathodes are usually adapted for the high energy density of batteries due to their high out voltages [15] .
It has been generally accepted that all-solid-state or quasi-solid-state is an effective method to achieve high safety [30,31,32]. Considering the ionic conductivity of quasi-solid-state gel polymer electrolyte is comparable with that of the conventional liquid electrolyte, the gel polymer electrolyte is a feasible choice for high safety SICs.
Zn-ion batteries with aqueous quasi-solid-state electrolytes (AQSSEs) with various functional groups that contain electronegative atoms (O/N/F) with tunable electron accumulation states are considered as a promising candidate to power the flexible devices and tremendous progress has been achieved in this prospering area. Herein, this review ...
The solid-state LiFePO4 cell exhibited the best electrochem. properties among the reported solid-state batteries, along with a reasonable rate capability. Li/LiCoO2 cells prepd. using this nanocomposite solid electrolyte exhibited high performance at both room temp. and a high temp., confirming their potential as lithium batteries with enhanced safety and a wide range of …
Quasi-solid-state electrolytes (QSSEs) have garnered significant attention due to combining the dynamic properties of liquid electrolytes and the high safety of solid-state electrolytes. However, the limited electrochemical stability window (ESW) of liquid electrolytes and the low conductivity of the polymer matrix seriously constrain practical ...
OVERVIEW OF INORGANIC SOLID-STATE ELECTROLYTES. The history of ISEs dates back to 1,838 [], when Faraday discovered that Ag 2 S and PbF 2 become good ion conductors when in their heated states (e.g., ~1 S cm-1 at 400 °C for PbF 2) was a century later that early SSBs based on silver salts, such as Ag/AgI/I 2, were reported, but their performance …
The quasi-solid-state hybrid electrolytes were synthesized by chemical cross-linking reaction of methacrylate-functionalized SiO 2 (MA-SiO 2) and tetra (ethylene glycol) diacrylate in aqueous electrolyte.A quasi-solid-state electrolyte synthesized by 6 wt.% MA-SiO 2 exhibited a high ionic conductivity of 177 mS cm −1 at room temperature. The electrochemical H 2 sensor assembled …
Quasi-solid-state electrolytes (QSSEs) stand out for mitigating the conflict between electrochemical and mechanical performance. Thus, this review comprehensively reviews the progress of QSSEs (including both hydrogel and colloidal electrolytes), starting from the fundamental properties of QSSE materials with tuning mechanisms summarized ...
Notably, the quasi-solid-state Li-S battery can discharge normally with ultralean electrolyte of even 1 μL mg sulfur −1. Moreover, the pouch cell with low E/S (3 μL mg −1) delivers a high energy density of 369.8 Wh kg −1. This work demonstrates the feasibility of quasi-solid-state Li-S batteries under lean-electrolyte condition ...
Na–O2 batteries have emerged as promising candidates due to their high theoretical energy density (1,601 Wh kg–1), the potential for high energy storage efficiency, and the abundance of sodium in the earth''s crust. Considering the safety issue, quasi-solid-state composite polymer electrolytes are among the promising solid-state electrolyte candidates. …
To resolve the liquid electrolyte issue, the quasi–solid state polymer electrolyte (QPE) strategy is effective in inorganic and organic Li-ion batteries and Na-ion batteries (13–16) has been shown that QPE is capable of absorbing liquid electrolyte without leakage (); it also has a high ion conductivity (10 −6 to 10 −3 S cm −1 at room temperature) that is comparable to that …
Despite hydrogen bond anchoring, the quasi-solid-state electrolyte benefits from the immobilized water network and exhibits an ionic conductivity of 1.24 mS cm −1, superior to those of nonaqueous Mg-ion electrolytes and all-solid-state electrolytes, which are commonly in the order of 10 −6 to 10 −4 S cm −1 at room temperature (table S1) (36–41). Ionic interactions …
The rapid improvement in the gel polymer electrolytes (GPEs) with high ionic conductivity brought it closer to practical applications in solid-state Li-metal batteries. The combination of solvent and polymer enables quasi-liquid fast ion transport in the GPEs. However, different ion transport capacity between solvent and polymer will cause local nonuniform Li+ …
Chen et al. proposed a flexible quasi-solid-state TEC, via the rational design of a hydrogel electrolyte, which simultaneously modulates the thermoelectric effect and mechanical robustness by redox-coupled multivalent ions . The enhancement of the mechanical strength of the gel electrolyte establishes a solid foundation for the integration of more intricate wearable …
Gel polymer electrolytes (GPE) have stimulated the enthusiasm to develop high-performance quasi-solid-state lithium–sulfur (Li–S) batteries, but the incompatibility between non-polar sulfur cathode and polar GPE has limited its further development. Changing polarity by replacing the non-polar sulfur cathode to polar organosulfur cathode is ...