Materials design for thermally improved safety in lithium-ion batteries
Songpei Nan, Guoxin Gao, Wei Yu, Shujiang Ding, Dawei Ding
TL;DR
This paper explores how material design can improve the thermal safety of lithium-ion batteries to prevent overheating and thermal runaway.
Contribution
The paper highlights novel material innovations that synergistically manage thermal and electrochemical processes in lithium-ion batteries.
Findings
Material design can stabilize the electrochemical environment and reduce localized overheating.
Recent advances in thermal management materials improve battery safety and performance.
Current challenges and future directions for high-safety lithium-ion batteries are identified.
Abstract
With the ever-increasing demand for high-energy-density lithium-ion batteries (LIBs) in multiscale energy storage, safety concerns have emerged as critical obstacles hindering their widespread application. The excess heat generated during the electrochemical process, if not properly managed, can accumulate and accelerate the aging of key cell components, potentially leading to catastrophic thermal runaway events such as fires and explosions. Thus far, considerable attention has been devoted to alleviating intense thermal runaway through fire-safe materials and energy-intensive thermal management technologies. However, the stabilization of the electrochemical environment through intrinsic thermal dissipation and temperature regulation governed by key material design has received comparatively little consideration. This paper aims to summarize the mechanism of thermal runway and highlight…
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Taxonomy
TopicsAdvancements in Battery Materials · Advanced Battery Technologies Research · Thermal Expansion and Ionic Conductivity