Improved solid-state lithium-ion battery on stainless steel substrate with graphene nanowalls by microwave plasma-enhanced chemical vapor deposition

In the field of solid-state lithium-ion batteries, the development of anode materials is crucial. This study utilized Microwave Plasma-Enhanced Chemical Vapor Deposition (MWPCVD) to fabricate Graphene Nanowalls (GNWs) on SUS304 stainless steel substrates for the first time as anode materials. The results demonstrated that GNWs on SUS304 substrates offer superior mechanical support and crystalline properties compared to those on copper substrates. The moderate growth density of these materials not only ensures good porosity but also facilitates electrolyte penetration, enhancing their integration with the electrolyte and significantly improving the battery’s energy density. This suggests that SUS304 stainless steel substrates have potential as ideal materials for fabricating anodes in solid-state lithium-ion batteries, providing new perspectives and experimental evidence for material development and performance enhancement in this technology.