The influence of tris(trimethylsilyl) borate (TMSB) as an electrolyte additive on lithium ion cells have been studied using Li/LiCo_1/3Ni_1/3Mn_1/3O₂ cells at a higher voltage, 4.7 V versus Li/Li⁺. 1 wt% TMSB can dramatically reduce the capacity fading that occurs during cycling at room temperature (RT) and elevated temperature (60 °C). After 150 cycles at 1 C rate (1 C = 278 mAh/g), the capacity retention of Li/LiCo_1/3Ni_1/3Mn_1/3O₂ is up to near 72% in the electrolyte with TMSB added, while it is only about 35% in the baseline electrolyte. The electrochemical behaviors, the surface chemistry and structure of Li/LiCo_1/3Ni_1/3Mn_1/3O₂ cathode are characterized with charge/discharge test, linear sweep voltammetry (LSV), X-ray photoelectron spectroscopy (XPS), electrochemical impedance spectroscopy (EIS), thermal gravimetric analyses (TGA), scanning electron microscope (SEM) and transmission electron microscopy (TEM). These analysis results reveal that the addition of TMSB is able to protectively modify the electrode CEI film in a manner that suppresses electrolyte decomposition and degradation of electrode surface structure, even though at both a higher voltage of 4.7 V and an elevated temperature of 60 °C.

使用Li / LiCo _1/3 Ni _1/3 Mn _1/3 O ₂电池在更高的电压（4.7 V vs Li / ）下研究了硼酸三（三甲基甲硅烷基）酸酯（TMSB）对锂离子电池的影响李⁺。1 wt％的TMSB可以显着降低在室温（RT）和高温（60°C）循环期间发生的容量衰减。在以1 C的速率（1 C = 278 mAh / g）进行150次循环后，Li / LiCo _1/3 Ni _1/3 Mn _1/3 O ₂的容量保持率添加了TMSB的电解质中的最高含量约为72％，而基线电解质中的最高含量约为35％。Li / LiCo _1/3 Ni _1/3 Mn _1/3 O ₂的电化学行为，表面化学和结构阴极具有充电/放电测试，线性扫描伏安法（LSV），X射线光电子能谱（XPS），电化学阻抗能谱（EIS），热重分析（TGA），扫描电子显微镜（SEM）和透射电子显微镜（ TEM）。这些分析结果表明，即使在4.7 V的较高电压和60°C的高温下，添加TMSB都能以抑制电解质分解和电极表面结构退化的方式保护电极CEI膜。 。