Effect of crystallinity and particle size on coke-based anode for lithium ion batteries

Effect of Pitch Coating on SiOx Alloy/Spherical Artificial Graphite Composites as Anode Materials for Lithium‐Ion Batteries

“…In PX4@SiOx‐10@G‐900, which formed an excessive carbon layer, a uniform SEI layer could not be formed due to uneven carbon coating surface. Moreover, the irreversible reaction was occurred due to a high content of amorphous carbon, leading to poor rate capability (95.8 % at 1200/200 mA g −1 ) [49–51] . In Figure 5e, P@SiOx‐10@G‐900 (97.8 % at 1200/200 mA g −1 ) and P@SiOx‐10@G‐1100 (97.6 % at 1200/200 mA g −1 ) showed relatively outstanding rate capabilities, as shown in Table S3, and P@SiOx‐10@G‐700 showed the impressive lithium‐ion diffusion rates, as displayed in Figure S4.…”

“…Moreover, the irreversible reaction was occurred due to a high content of amorphous carbon, leading to poor rate capability (95.8 % at 1200/200 mA g À 1 ). [49][50][51] In Figure 5e, P@SiOx-10@G-900 (97.8 % at 1200/200 mA g À 1 ) and P@SiOx-10@G-1100 (97.6 % at 1200/200 mA g À 1 ) showed relatively outstanding rate capabilities, as shown in Table S3, and P@SiOx-10@G-700 showed the impressive lithium-ion diffusion rates, as displayed in Figure S4. With higher carbonization temperature, the rate capability increased.…”

Control of cyclic stability and volume expansion on graphite–SiOx–C hierarchical structure for Li-ion battery anodes

“…Prelithiaion strategy, to compensate for irreversible Li loss before full-cell fabrication, could be achieve more than 90% of ICE. [45][46][47][48] This is expected to be helpful in practical applications in the future.…”

Properties of synthetic graphite from boric acid-added pitch: performance as anode in lithium-ion batteries

“…The insertion of lithium ions into a defect or pore of the carbon structure progresses via a mechanism involving storage in the cavity rather than through intercalation by staging between carbon layers at potentials of less than 0.25 V versus Li/Li + [43][44][45][46]. In general, storage of lithium ions in the pore and defects results in an increase in initial capacity (4203-B1-2500 → 4203-B3-2500), but the capacity decrease at (4203-B5-2500 → 4203-B7-2500) can be interpreted as a decrease in the specific capacity because an inactive metal (B 4 C) is formed with respect to lithium ions [38,47,48]. Synthetic graphite produced by adding boric acid causes a defect in graphite hexagonal structure as shown in Fig.…”