Further increase in the specific energy/energy density of lithium ion batteries can be achieved via further increase of charge cell voltage. However, an enhanced electrode cross-talk, i.e., transition metal (TM) dissolution from cathode and deposition on the anode, drastically limits the cycle life, even leading to rollover failure. In this work, the commonly used film-forming electrolyte additives vinylene carbonate (VC), fluoroethylene carbonate (FEC), and lithium difluorophosphate (LiDFP) are thoroughly evaluated regarding their ability to suppress the issues originating from electrode cross-talk. Neither the VC- nor the FEC-containing electrolytes can suppress it, as evidenced by the presence of Ni, Co, and Mn on the graphite anode; although different for the FEC, the deposited TMs and intertwined Li deposits are homogeneously distributed in the presence of VC. Despite suppression of rollover failure in this manner, VC still cannot compete with LiDFP because LiDFP is able to complex TMs and provide TM-scavenging agents, i.e., PO₃F⁻ and PO₄²⁻, thus, effectively suppressing electrode cross-talk in the first place and effectively preventing the concomitant failure cascade.

通过进一步提高充电电池电压，可以进一步提高锂离子电池的比能量/能量密度。然而，增强的电极串扰，即过渡金属 (TM) 从阴极溶解并沉积在阳极上，极大地限制了循环寿命，甚至导致翻转失败。在这项工作中，对常用的成膜电解质添加剂碳酸亚乙烯酯 (VC)、氟代碳酸亚乙酯 (FEC) 和二氟磷酸锂 (LiDFP) 的抑制能力进行了全面评估。含 VC 和 FEC 的电解质都不能抑制它，石墨阳极上存在 Ni、Co 和 Mn 就证明了这一点；尽管 FEC 有所不同，在 VC 存在下，沉积的 TM 和相互缠绕的锂沉积物均匀分布。尽管以这种方式抑制了翻转失败，但 VC 仍然无法与 LiDFP 竞争，因为 LiDFP 能够复合 TM 并提供 TM 清除剂，即 PO₃ F ^-和PO ₄ ^2-，因此，首先有效地抑制了电极串扰，并有效地防止了伴随的故障级联。