In this work, MnO 2 was loaded on carbon paper to serve as the current collector for Li–S batteries. The electrochemical results demonstrate that the fabricated MC-5 collector could cycle for 200 cycles with considerable capacity and
In this study, bipolar current collectors (CCs) were fabricated in a sheet of carbon fiber fabric impregnated with an epoxy resin using vacuum-assisted resin transfer molding.
Here, inspired by natural wood materials with aligned channels along the tree growth direction, a highly conductive, lightweight, and low‐tortuosity carbon framework (CF) directly carbonized from natural wood as an ultrathick 3D
Abstract The current collector is a crucial component in lithiumion batteries and ‐ supercapacitor setups, responsible for gathering electrons from electrode materials and directing them into the external circuit.
Building on this foundation, this paper is organized into sections on metallic current collectors, carbon-based current collectors, and polymer current collectors, summarizing the modification strategies for each type.
Here, conductive carbon paper was prepared via thermal treatment of porous carbon fibre/carbon composites, and used as the current collectors in GH electrodes for supercapacitors.
We advance here a sheet of carbon fiber fabric interlaced with epoxy resin as a bipolar current collector (CC), which becomes a component of bipolar electrode when coated with an active material and dried.
Due to its high porosity and high electrical conductivity, graphene hydrogel electrodes using carbon paper as a current collector showed a high gravimetric capacitance of 294F/g at a...
Here, conductive carbon paper was prepared via thermal treatment of porous carbon fibre/carbon composites, and used as the current collectors in GH electrodes for supercapacitors.
Here, inspired by natural wood materials with aligned channels along the tree growth direction, a highly conductive, lightweight, and low‐tortuosity carbon framework (CF) directly carbonized from natural wood as an ultrathick 3D current collector is demonstrated.
Building on this foundation, this paper is organized into sections on metallic current collectors, carbon-based current collectors, and polymer current collectors, summarizing the modification strategies for each type.
Here, conductive carbon paper was prepared via thermal treatment of porous carbon fibre/carbon composites, and used as the current collectors in GH electrodes for supercapacitors.
In this study, we investigated non-woven carbon (NwC) as a 3D current collector for Li2S positive electrodes. Improved charge and discharge capacities, and capacity retention were obtained, as compared with electrodes containing Al-foil current collector.
We advance here a sheet of carbon fiber fabric interlaced with epoxy resin as a bipolar current collector (CC), which becomes a component of bipolar electrode when coated with an active material and dried. The CC is quite light and its specific strength is an order of magnitude higher than the typical metal CCs.
Specifically, lithium–sulfur batteries using carbon paper/MnO 2 as a cathode collector could stably circulate for 200 cycles at 0.2 C with a capacity of 664 mAh g −1, which is higher than that of carbon paper as a cathode collector (486 mAh g −1 ).
Thus, the hybrid cathode collector based on carbon paper and MnO 2 could simultaneously combine the conductivity and chemical interaction during the electrochemical process of the Li–S batteries without the extra conductive additives and binders, which could be conductive to fabricate high-performance Li–S batteries.
Carbon paper has shown a certain competitive advantage in fabricating the high-loading and flexible electrode with an excellent conductive framework [ 35, 36 ], but its weak anchoring ability on soluble LiPS may lead to obvious capacity decay.
Meanwhile, different kinds of active materials, such as solid elemental sulfur, lithium sulfides, and liquid LiPS, are all appropriate for the 3D current collector and even could match the Li-free anode to enhance the safety of Li–S batteries. 4. Conclusions
Developing a high-performance current collector without other accessories (binders, conductive additives, metal collectors) could increase the proportion of the active materials to fabricate high-energy-density Li–S batteries.
