Few-layer graphene coated current collectors for safe and powerful lithium ion batteries

An Overview on the Advances of LiCoO2 Cathodes for Lithium‐Ion Batteries

“…Yang et al coupled Al collector with chemical vapor deposition‐grown large‐area three‐layered graphene. [ 163 ] The graphene‐induced adhesion strength between the current collector and the active materials contributes to the high mechanical strength of the electrode itself and high density of electrical path within the electrode, which facilitates effective electron transfer and affords the ability to withstand mechanical stress arising from the volume change of active materials during the charge/discharge process. Moreover, the graphene layers protect the underlying current collectors from corrosion and greatly improved the thermal conductivity; they also improved the safety of the energy‐storage devices.…”

Review on carbonaceous materials and metal composites in deformable electrodes for flexible lithium-ion batteries

“…As metallic current collectors prone to corrosion during longterm cycling, elevating the resistance, and crack formation in the stressed zone while repeatedly mechanical deformation leads to rapid structural failure. In order to overcome such shortcomings, researchers have provided several types of suggestions such as, coated with graphene, [194][195][196] growing of CNTs on metallic current collectors [197][198][199] surface modifying with conducting polymer, 200 coated with carbon layers, 201,202 surface modication 203 In addition, Park et al synthesized honey comb like 3D structured Al and Cu by using reactive-ion etching (RIE) process, which reduce the total mass of electrodes and improved the adhesion strength with active materials results in enhanced exibility. 204 Metallic bril mesh-like conguration is another approach to preparing free-standing electrodes, which generates 3D conductive pathways through the whole electrodes and reduce the mass of electrodes while improve the capacity and exibility.…”

First Scalable 18650 Aqueous-based Supercapacitors Using Hydrophobicity of Anti-corrosion Graphite Passivation Layer

“…4,5 However, one of the key challenges limiting practical and commercial aqueous-based supercapacitors is a corrosion issue of metal current collectors in aqueousbased electrolytes. Recently, the surface modi cation of metals with carbon materials (i.e., graphite, 6,7 graphene, 8,9 and carbon nanotubes 10 ) has attracted great attention for many other applications. Such reports highlighted remark improvements of the modi ed electrodes including the suppression of corrosion, 8 the improvement of interfacial contact, 9 and the reduction of internal resistance.…”

“…Recently, the surface modi cation of metals with carbon materials (i.e., graphite, 6,7 graphene, 8,9 and carbon nanotubes 10 ) has attracted great attention for many other applications. Such reports highlighted remark improvements of the modi ed electrodes including the suppression of corrosion, 8 the improvement of interfacial contact, 9 and the reduction of internal resistance. 11 A graphitecoated aluminium current collector may be an ideal candidate to be coated on metal current collectors for the aqueous-based energy storage devices since the graphite is abundant providing great chemical stability and high electrical conductivity.…”