【文章內(nèi)容簡介】 bonate electrolyte: GT303+ 2%wt. VC+ 2% mercial carbonate electrolyte + 30% SN1 : 70% TC + 30% SN1, M LiODFB + 1 M LiPF6, 2%wt. VC+ 2% OS based electrolytes for LCO/graphite cell (b) 160 140 1 Specific capacity/ mAhg 0 10 20 30 40 50 60 100 1C merical carbonate electrolyte merical carbonate electrolyte+30% SN1 (c) 160 140 120 Cycle number mercial carbonate electrolyte: GT303+ 2%wt. VC+ 2% mercial carbonate electrolyte + 30% SN1 : 70% TC + 30% SN1, M LiODFB + 1 M LiPF6, 2%wt. VC+ 2% OS based electrolytes for LCO/graphite cell Electrochemical windows ? Imidazolium ILs: ca. 4V ? Tertraalkylammonium ILs: ca. 6V R = (CH3)3SiCH2, (CH3)3CCH2 A = N(CF3SO2)2, BF4 J. . B, 109, 21576(2023)。 111, 4819 (2023)。 111, 4885(2023)。 Talanta, 71, 68(2023). N + N R A + Si N N C4H9 PF6 ? TertraalkylPhosphonium ILs: excellent thermal stability Electrochim. Acta, 51, 5567(2023) Organosilicon Based Ionic Liquids Advantages Over Carbon Analogues ? Weake Intermolecular interactions ? Lower viscosity ? Low glass transition temperature ? Hydrophobic X = N, P。 n = 1, 3。 R1=CH3, CH3CH2。 R2=Alkyl, alkoxy A = BF4, PF6, TFSI, BOB, NCN2 R2 R2 Si R2 (CH2)nXR1(OCH2CH3)2 A O O O O O O O F3C S N S CF3 O O TFSI B O O BOB Anion structures: US 2023029970 A1。 WO 2023045609 A1。 CHN Pat: Organosilicon Based Ionic Liquids Mass Retaintion (%) Current (??) OS Ionic Liquid SN1ILTFSI AN1ILTFSI CETMATFSI σ mS/cm ? cp Tdec oC 362 325 329 Eanodic V Ecathodic V Novel Organosilicon Based Ionic Liquids 0 1 2 5 6 3 4 Potential (V) SN1ILTFSI AN1ILTFSI CEN1ILTFSI 0 100 500 600 120 100 80 60 40 20 0 SN1ILTFSI AN1ILTFSI CEETMAILTFSI 200 300 400 o Temperature ( C) Capacity (mAh/g) Capacity (mAh/g) Efficiency (%) Efficiency (%) 0 0 30 150 120 90 60 180 0 10 20 30 40 50 60 70 80 90 Cycle 20 80 60 40 100 0 5 25 30 0 30 150 120 90 60 180 2C 1C 10 15 20 Cycle number 0 20 80 60 40 100 120 Cell Performances for Novel OS Ionic Liquids LCO/Graphite, V, SN1ILTFSI:DMC =1:1 by vol. 210 Capacity (mAh/g) Efficiency (%) Capacity (mAh/g) Efficiency (%) 0 10 20 30 40 50 60 70 80 90 100 220 200 180 160 140 120 100 80 60 40 20 0 Cycle Number 100 80 60 40 20 0 NMCLI cell。 Capacity Retention: 96% (100 cycle) SN1ILTFSIEMC11 0 2 4 6 220 200 180 160 140 120 100 80 60 40 20 0 8 10 12 14 16 18 20 22 24 26 28 30 Cycle Number 100 80 60 40 20 0 NMC/graphite () SN1ILTFSIEMC11 Cell Performances for Novel OS Ionic Liquids Coulombic efficiency / % Specific capacity/ mAhg 1 0 5 10 15 20 25 30 35 0 80 40 200 160 120 0 40 20 Cycle number 28 Graphite/NMC, V, 2%PS LiODFB M LiPF6 BNS BNS for V graphite/NMC cell Provided by YTQ 100 80 60 Specific capacity/ mAhg 1 Efficiency (%) 0 5 10 15 20 25 0 Cycle number (a) 210 180 150 120 90 60 30 0 100 80 60 40 20 SN1ILTFSI for and V graphite/NMC V V SN1ILTFSI/EMC (1:1 by vol.) Capacity/mAh 14000 12023 10000 8000 6000 4000 2023 0 0 100 200 300 400 500 600 700 E12A0841 668 Cycle； % EST: 811 Cycle； 80% 10A AE7365270PM3HSE) 11500mAh Commercialization of OS Electrolytes NMC/OS Electrolyte/C Battery (10 Ah) Number of Cycle Charge: CC 10Ato 。 CV to or 200mAcut off at RT Discharge: 10A to at RT 采 測 一 1s采集一 個數(shù)據(jù) 兩種電解液的電池在穿刺測試過程 中溫升趨勢和最高溫度均沒有明顯差異， 即電池內(nèi)部的放熱反應(yīng)方式和程度沒有 變化，但有機硅電解液能有效抑制易燃 成分的燃燒。 有機硅電解液與商業(yè)電解液三元動力電池（ 10 Ah) 針刺安全性對比 有機硅電解液電池煙霧噴射力度較小，地上的黑色物質(zhì)少 商業(yè)電解液電池煙霧噴射力度較大，地上的黑色物質(zhì)多，部分電池 會著火爆炸 OS electrolyte battery Pack (， 100Ah) Demonstration of OS Battery Pack Application: Solar Energy Navigation light Collaboration： GD Maritime Safety Administration (廣州航標局）