Progress of Polymer Electrolytes Worked in Solid-State Lithium Batteries for Wide-Temperature Application.

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Solid-state lithium-ion batteries offer enhanced safety and energy density.
• Polymer electrolytes in these batteries suffer from poor ionic conductivity at low temperatures and instability at high temperatures.
• This limits the operational temperature range of solid-state lithium-ion batteries.

Purpose of the Study:

• To review promising polymer electrolyte systems for solid-state lithium-ion batteries.
• To analyze the temperature-dependent properties of polymer electrolytes.
• To summarize modification strategies for enhancing performance across wide temperature ranges.

Main Methods:

• Literature review of polymer electrolyte systems.
• Analysis of physical and electrochemical properties of polymers.
• Summary of performance data for polymer-based solid-state batteries at various temperatures.

Main Results:

• Identified key challenges in polymer electrolyte performance across temperature extremes.
• Highlighted various modification strategies to improve ionic conductivity and thermal stability.
• Compiled performance data illustrating the impact of temperature on battery operation.

Conclusions:

• Developing wide-temperature polymer electrolytes is crucial for practical solid-state battery applications.
• Further research into material modification and system design is needed to overcome temperature limitations.
• This review provides insights for designing advanced polymer electrolytes for diverse operating conditions.