Aliphatic Polycarbonate‐Based Solid‐State Polymer Electrolytes for Advanced Lithium Batteries: Advances and Perspective

Abstract

Conventional liquid electrolytes based lithium-ion batteries (LIBs) might suffer from serious safety hazards. Solid-state polymer electrolytes (SPEs) are very promising candidate with high security for advanced LIBs. However, the quintessential frailties of pristine polyethylene oxide/lithium salts SPEs are poor ionic conductivity (≈10 S cm ) at 25 °C and narrow electrochemical window (<4 V). Many innovative researches are carried out to enhance their lithium-ion conductivity (10 S cm at 25 °C), which is still far from meeting the needs of high-performance power LIBs at ambient temperature. Therefore, it is a pressing urgency of exploring novel polymer host materials for advanced SPEs aimed to develop high-performance solid lithium batteries. Aliphatic polycarbonate, an emerging and promising solid polymer electrolyte, has attracted much attention of academia and industry. The amorphous structure, flexible chain segments, and high dielectric constant endow this class of polymer electrolyte excellent comprehensive performance especially in ionic conductivity, electrochemical stability, and thermally dimensional stability. To date, many types of aliphatic polycarbonate solid polymer electrolyte are discovered. Herein, the latest developments on aliphatic polycarbonate SPEs for solid-state lithium batteries are summarized. Finally, main challenges and perspective of aliphatic polycarbonate solid polymer electrolytes are illustrated at the end of this review.

A Switchable Domino Process for the Construction of Novel CO2‐Sourced Sulfur‐Containing Building Blocks and Polymers

“…[1] The[ 3 + +2] cycloaddition of CO 2 to epoxides is the most popular and straightforward approach to five-membered cyclic carbonates [2] and, with the recent breakthroughs in their catalyzed transformations, [3] new CO 2 -based organic molecules with ahigh degree of complexity are now accessible. The process is extremely fast and versatile in substrate scope,p rovides selectively linear thiocarbonates or elusive tetrasubstituted ethylene carbonates with high yields following a1 00 %a tom economy reaction, and valorizes CO 2 as arenewable feedstock.…”

“…[1] The [ 3 + +2] cycloaddition of CO 2 to epoxides is the most popular and straightforward approach to five-membered cyclic carbonates [2] and, with the recent breakthroughs in their catalyzed transformations, [3] new CO 2 -based organic molecules with ahigh degree of complexity are now accessible. [1] The [ 3 + +2] cycloaddition of CO 2 to epoxides is the most popular and straightforward approach to five-membered cyclic carbonates [2] and, with the recent breakthroughs in their catalyzed transformations, [3] new CO 2 -based organic molecules with ahigh degree of complexity are now accessible.…”

Formulation of Blended‐Lithium‐Salt Electrolytes for Lithium Batteries

“…High‐profile solid‐state lithium batteries also adopt blended‐salt‐based solid polymer electrolytes (SPEs; Figure a) . In most cases, optimization of the ionic conductivity of blended‐salt‐based SPEs is the main focus.…”

Formulierung von Elektrolyten mit gemischten Lithiumsalzen für Lithium‐Batterien

“…In Festkörper‐Lithium‐Batterien werden Festpolymer‐Elektrolyte (SPEs, solid polymer electrolytes), die ebenfalls auf gemischten Salzen beruhen, eingesetzt (Abbildung a) . In den meisten Fällen bildet die Optimierung der Ionenleitfähigkeit von auf gemischten Salzen basierenden SPEs den Schwerpunkt.…”