Bio-Inspired Core-Shell Structured Electrode Particles with Protective Mechanisms for Lithium-Ion Batteries

Area of Science:

• Materials Science
• Electrochemistry
• Energy Storage

Background:

• Lithium-ion batteries (LIBs) are crucial for electric vehicles and carbon neutrality.
• Key challenges for LIBs include improving cyclic life and thermal stability.
• Current electrode materials face limitations in performance and safety.

Purpose of the Study:

• To investigate bio-inspired core-shell structures for enhancing LIB performance.
• To optimize self-protective mechanisms in electrode particles.
• To simultaneously improve electrochemical performance and thermal stability.

Main Methods:

• Utilizing bio-inspired core-shell structures for electrode particles.
• Applying multitudinous coating approaches to create these structures.
• Analyzing the stabilization of electrode-electrolyte interfaces (EEIs).

Main Results:

• Core-shell structures suppress volume expansion and stabilize EEIs.
• Protected shells mitigate side reactions, enhancing thermal stability.
• Improved electrical connectivity and resistance to short circuits were observed.

Conclusions:

• Bio-inspired core-shell structures offer a promising strategy for advancing LIBs.
• These structures enhance both the lifetime and thermal safety of LIBs.
• Further research into these protective mechanisms can inspire next-generation energy storage solutions.