首页> 外文期刊>International Journal of Electrochemical Science >Sulfolane with LiPF6, LiNTf2 and LiBOB - as a non-Flammable Electrolyte Working in a lithium-ion batteries with a LiNiO2 Cathode
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Sulfolane with LiPF6, LiNTf2 and LiBOB - as a non-Flammable Electrolyte Working in a lithium-ion batteries with a LiNiO2 Cathode

机译:具有LiPF 6 ,LiNTf 2 和LiBOB的环丁砜-作为非易燃电解质,在具有LiNiO 2 阴极的锂离子电池中工作

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LiNiO2 was examined as cathode materials for the lithium-ion battery, working with non-flammableelectrolyte, obtained by dissolution of solid lithium bis(trifluoromethanesulphonyl)imide (LiNTf2),lithium bis(oxalato)borate (LiBOB) and lithium hexafluorophosphate (LiPF6, Fluka) in sulfolane(TMS) with 10% vinylene carbonate (VC). Apart from the electrochemical tests, it was important toset the flash point. The Li/LiNiO2 cells were tested by cyclic voltammetry, galvanostaticcharging/discharging. The LiNiO2 cathode showed good cyclability and coulombic efficiency for theelectrolyte, which contains 1 M LiPF6 in TMS + 10% VC (195 and 140 mAh g-1 after 20 cycles –C/10). Correspondingly lower capacity was observed for system Li/LiNiO2 in:1 M LiNTf2 in TMS + 10% VC and 1 M LiBOB in TMS + 10% VC. The LiNiO2(solid) + 1 M LiPF6 +TMS + 10% VC system shows a flash point of ca. 160.
机译:通过溶解固体双(三氟甲磺酰基)酰亚胺锂(LiNTf2),双(草酸硼酸)锂(LiBOB)和六氟磷酸锂(LiPF6,Fluka)获得的锂离子电池正极材料(不可燃的电解质)被用作LiNiO2进行了研究)在环丁砜(TMS)中加入10%碳酸亚乙烯酯(VC)。除了电化学测试,重要的是设置闪点。通过循环伏安法,恒电流充电/放电测试Li / LiNiO2电池。 LiNiO2阴极对电解液显示出良好的循环能力和库仑效率,该电解液在TMS中包含1 M LiPF6 + 10%VC(20个循环–C / 10后为195和140 mAh g-1)。相应地,系统Li / LiNiO2的容量较低:TMS + 10%VC中的1 M LiNTf2和TMS + 10%VC中的1 M LiBOB。 LiNiO2(固体)+1 M LiPF6 + TMS + 10%VC系统显示闪点为。 160。

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