Understanding the correlation between microstructure and electrochemical performance of hybridized pitch cokes for lithium-ion battery through tailoring their evolutional structures from ordered soft carbon to disordered hard carbon

Multi-stage explosion of lignin: a new horizon for constructing defect-rich carbon towards advanced lithium ion storage

“…48 The low-voltage plateau characteristic of PLPCC-700 can be achieved via hybrid strategies with soft carbon and SiO x (0 < x < 2). 50,51 Compared with the significant increase in the slope activation capacities of 120–170 mA h g −1 after 25 cycles at 0.2 A g −1 for PLPCC-600, PLPCC-800 (Table S3†), and other mesoporous or microporous carbons, 9,14 the slope activation capacity of 63.8 mA h g −1 for PLPCC-700 demonstrates superior electrochemical stability.…”

Investigation of the soft carbon microstructure in silicon/carbon anodes for superior lithium storage

“…Furthermore, Si@MCMB-12 and Si@MCMB-13 had relatively smaller specific surface areas, abundant carbon layers stacked and pore volume distribution, which provided better conditions for SEI generation and electron/ion channels. 7,13 In addition, the abundant pore volume distribution was beneficial to buffer the volume change of the Si alloying process, ensuring the mechanical stability of the anodes. Therefore, the Si@MCMB-12 and Si@MCMB-13 anodes showed good cycling and rate properties, as listed in Tables 1 and 2.…”

“…electron/ion channels. 7,13 In addition, the abundant pore volume distribution was benecial to buffer the volume change of the Si alloying process, ensuring the mechanical stability of the anodes. Therefore, the Si@MCMB-12 and Si@MCMB-13 anodes showed good cycling and rate properties, as listed in Tables 1 and 2.…”

“…Mesophase pitch as so carbon contains ordered graphite regions with controllable crystallinity, which imparts excellent electron transfer properties and structural elasticity to improve electrochemical performance. 7,8 Firstly, the streamlined carbon arrays of mesophase pitch aer carbonization have moderately expanded layer spacing, enabling them to have better rate performance than hard carbons and conventional graphite anodes. 9,10 Additionally, compared with hard carbon, the pores and defects of mesophase pitch can be easily adjusted by the heat treatment temperature to achieve a reasonable compromise between ion diffusion and electrolyte compatibility.…”

Synthesis Strategies and Applications for Pitch‐Based Anode: From Industrial By‐Products to Power Sources

“…SC, derived from coal, petroleum, and pitch, has higher carbon content, lower prices, easier graphitization, and better conductivity than HC. Meanwhile, it still exhibits a larger theoretical capacity than graphite, [28][29][30] making it promising for high-performance electrode precursors. [31,32] SC's molecules have low van der Waals forces, [33][34][35] and its degree of graphitization and the distance between carbon layers can be adjusted by heat treatment.…”