Tannin-Derived Hard Carbon for Stable Lithium-Ion Anode

Abstract

Graphite anodes are well established for commercial use in lithium-ion battery systems. However, the limited capacity of graphite limits the further development of lithium-ion batteries. Hard carbon obtained from biomass is a highly promising anode material, with the advantage of enriched microcrystalline structure characteristics for better lithium storage. Tannin, a secondary product of metabolism during plant growth, has a rich source on earth. But the mechanism of hard carbon obtained from its derivation in lithium-ion batteries has been little studied. This paper successfully applied the hard carbon obtained from tannin as anode and illustrated the relationship between its structure and lithium storage performance. Meanwhile, to further enhance the performance, graphene oxide is skillfully compounded. The contact with the electrolyte and the charge transfer capability are effectively enhanced, then the capacity of PVP-HC is 255.5 mAh g−1 after 200 cycles at a current density of 400 mA g−1, with a capacity retention rate of 91.25%. The present work lays the foundation and opens up ideas for the application of biomass-derived hard carbon in lithium anodes.

Green synthesis of carbon-supported ultrafine ZnS nanoparticles for superior lithium-ion batteries

“…Biomass-derived carbon possesses tunable conductivity and morphology, making it an attractive choice for various applications due to its low cost, exceptional structural stability, and environmental friendliness. 19,20 In recent years, self-assembled structures of the biomolecule guanosine have found extensive applications in nanotechnology. Guanosine derivatives with hydrogen bond acceptors and donors can self-associate into dimers, ribbons, or macrocycles, 21 leading to the carbonization of guanosine derivatives producing a variety of carbonaceous materials with different morphologies, including 2D crystalline carbons, 22 carbon dots 23 and carbon microspheres/ nanosheets.…”

Graphene Oxide-Wrapped Co3O4/NiO Micron Flowers as an Anode of Lithium-Ion Batteries with Enhanced Rate Performance and Cycling Stability

“…Fuel vehicles are being replaced by new energy vehicles due to the disadvantages of high energy consumption and high pollution . However, the further development of new energy vehicles is strictly limited by the short range and severe capacity attenuation at high or low temperatures. − The key to solving this problem is to prepare lithium-ion batteries with high energy density and high stability. − Anode materials play an important role in preparing the high-performance lithium-ion battery. − Carbon materials have been commercialized due to excellent structural stability, but their further application is limited by the low theoretical specific capacity, which greatly restricts the improvement of the energy density of lithium-ion batteries. , Transition metal oxides have received extensive attention in recent years due to their high theoretical specific capacity and environmental friendliness. − However, pulverization is easy to occur during long cycles. , In addition, the rate performance is greatly confined by its inherently poor conductivity. − …”

“…11−13 Carbon materials have been commercialized due to excellent structural stability, but their further application is limited by the low theoretical specific capacity, which greatly restricts the improvement of the energy density of lithium-ion batteries. 14,15 Transition metal oxides have received extensive attention in recent years due to their high theoretical specific capacity and environmental friendliness. 16−18 However, pulverization is easy to occur during long cycles.…”