This review emphasizes the significant advancements and ongoing challenges in the development of Si-based solid-state batteries (Si-SSBs). Si-SSBs represent a breakthrough in energy storage technology owing to their ability to achieve higher energy densities and improved safety.
Silicon-based solid-state batteries (Si-SSBs) are now a leading trend in energy storage technology, offering greater energy density and enhanced safety than traditional lithium-ion batteries. This review addresses the complex challenges and recent progress in Si-SSBs, with a focus on Si anodes and battery manufacturing methods.
2. Solid Electrolytes: The Heart of Solid-State Batteries The gradual shift to solid electrolytes has been influenced by the prior development of conventional lithium (Li) batteries, which have traditionally employed liquid electrolytes.
Solid-state batteries (SSBs) are expected to play an important role in vehicle electrification within the next decade. Recent advances in materials, interfacial design, and manufacturing have rapidly advanced SSB technologies toward commercialization.
The solid-state design of SSBs leads to a reduction in the total weight and volume of the battery, eliminating the need for certain safety features required in liquid electrolyte lithium-ion batteries (LE-LIBs), such as separators and thermal management systems [3, 19].
Solid-state is the next logical point of evolution for energy storage in this regard. Solid-state batteries use solid electrolytes that are inherently more stable and less prone to overheating compared to liquid electrolytes. They do not contain flammable materials, reducing the risk of combustion at high temperatures.