Preparation of hierarchical porous carbon and its rate performance as anode of lithium ion battery

Facile preparation of 3D hierarchical porous carbon from lignin for the anode material in lithium ion battery with high rate performance

“…Recently, hierarchical porous carbon (HPC) has been researched for lithium ion batteries with high power performance, due to its high reversible lithium storage capacity and fast lithium storage kinetics [1,[3][4][5][6][7][8][9][10]. HPCs are usually prepared from template methods with polymers as carbon sources, which includes complex preparation procedures, and consumes large amount of inorganic or organic templates [11][12][13].…”

Graphite-anchored lithium vanadium oxide as anode of lithium ion battery

“…With recent advances in electronic devices, anode materials with high storage capacity and high power density attract considerable interest as alternatives to the commercial graphite anode used in lithium ion batteries [1,2]. The layered structured lithium vanadium oxide (Li 1.1 V 0.9 O 2 ), has a low working potential of approximately 0.1 V vs. Li + /Li, with a gram specific capacity of, (314 mAh/g) similar to graphite (372 mAh/g), but shows a higher volumetric capacity density of 1360 mAh/cm 3 (790 mAh/cm 3 for graphite), and is therefore of considerable interest as an anode material [3,4].…”

Boron-Doped Carbon Nano-/Microballs from Orthoboric Acid-Starch: Preparation, Characterization, and Lithium Ion Storage Properties

“…However, at the 1st reversible cycle, the specific discharge capacity of BC electrode reached as high as 964 mAh g -1 and stabilized at 699 mAh g -1 by the end of the 11th cycle which were nearly two times higher than the theoretical top value of graphite electrode (372 mAh g -1 ) with the LiC 6 mechanism [63][64][65]. At the highest current density of 10 C, the capacity kept at ∼116.8 mAh g -1 till the 57th cycle [66][67][68][69][70]. When the current density was adjusted back to 0.2 C at the 70th cycle, the discharge capacity recovered to 490 mAh g -1 for BC electrode.…”

“…As presented in Figure 5, The nano-/microstructures of BC particles determined the charge-transfer process of lithium ion insertion/extraction reaction [67,68]. According the reported literature, the calculated value as 138 Ω for BC electrode was regarded as a composite resistance value determining the charge transfer of Li + ions insertion/extraction [69,70].…”