2022
DOI: 10.1002/bte2.20220016
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Transforming silicon slag into high‐capacity anode material for lithium‐ion batteries

Abstract: The conception of cheaper and greener electrode materials is critical for lithium (Li)‐ion battery manufacturers. In this study, a by‐product of the carbothermic reduction of SiO2 to Si, containing 65 wt% Si, 31 wt% SiC, and 4 wt% C, is evaluated as raw material for the production of high‐capacity anodes for Li‐ion batteries. After 20 h of high‐energy ball milling, C is fully converted to SiC and a micrometric powder (D50 ∼1 μm) is obtained in which submicrometric SiC inclusions are embedded in a nanocrystalli… Show more

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Cited by 11 publications
(13 citation statements)
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“…The CE increased from 75% to about 90% for the electrodes with porosities of 75% and 30%, respectively (Figure 8e). An improved electrochemical result for matured calendered Si/carbon electrodes were also obtained by Vanpeene et al [ 114 ]…”
Section: Performance Of Calendered Lib Electrodesmentioning
confidence: 71%
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“…The CE increased from 75% to about 90% for the electrodes with porosities of 75% and 30%, respectively (Figure 8e). An improved electrochemical result for matured calendered Si/carbon electrodes were also obtained by Vanpeene et al [ 114 ]…”
Section: Performance Of Calendered Lib Electrodesmentioning
confidence: 71%
“…The CE increased from 75% to about 90% for the electrodes with porosities of 75% and 30%, respectively (Figure 8e). An improved electrochemical result for matured calendered Si/carbon electrodes were also obtained by Vanpeene et al [114] Wang et al [115] prepared a Si structure with high stability at a pressure of over 100 MPa (the mechanical stress during calendering could be up to 80 MPa) [35,93] by depositing a dense Si shell (using a Si layer of about 200 nm) onto each Si particle cluster. The fabricated particles meaningfully advance mechanical stability, and the structure of these particles remained undamaged after the calendering process (Figure 10a 1 -a 4 ).…”
Section: Siliconmentioning
confidence: 84%
“…However, due to the higher electrochemical reaction activity, the cycling stability is slightly deteriorated, and the working voltage of conversion reaction is increased as well, which has some negative impact on the overall energy density of both LIBs and SIBs. [132][133][134][135][136] Most bulk N-doped cathodes have higher redox potentials with increased structural symmetry. We aim to provide a clear picture of geometric diversity and stability of the N-doped cathodes, including the valence change and corresponding alkali-ion storage mechanism for the researchers.…”
Section: Perspectives and Outlookmentioning
confidence: 99%
“…However, due to the higher electrochemical reaction activity, the cycling stability is slightly deteriorated, and the working voltage of conversion reaction is increased as well, which has some negative impact on the overall energy density of both LIBs and SIBs. [ 132–136 ]…”
Section: Perspectives and Outlookmentioning
confidence: 99%
“…[2] Advanced electrochemical energy storage systems are key power sources in emerging electric vehicle, smart grid, and portable electronics applications. [3] Among energy storage devices, supercapacitors, [4][5][6][7] lithium-ion batteries, [8][9][10][11][12][13][14] sodium-ion batteries, [15][16][17][18][19][20] potassium-ion batteries, [21][22][23][24] and Li-S batteries, [25][26][27][28][29][30][31][32] have received widespread attention. As an important energy storage device, supercapacitors have attracted extensive attention and owned a wide range of applications due to their microsize, lightweight, fast charging, and discharging speed, high power density, long cycle life, and wide operating temperature.…”
Section: Introductionmentioning
confidence: 99%