At present, lithium (Li) metal has become the most promising anode for the next generation of batteries due to its excellent theoretical capacity and low electrochemical potential. , low lithium-ion transference numbers and poor stability between conventional electrolytes and electrodes limit its development. In this work, a novel three-dimensional cross-linked hybrid borate single ion conductor polymer electrolyte (POSS-BSICP) was constructed by coupling of novel synthesized lithium bis-allylmalonate borate (LiBAMB), poly (ethylene glycol) diacrylate (PEGDA) and vinyl-containing caged poly(sesquisiloxane) (MAPOSS) in the presence of pentaerythritol tetrakis(mercaptoacetate) (PETMP) as cross-linker and PVDF-HFP as support materials through UV-thermal Dual-Curing procedures. As expected, the lithium-ion transference number and electrochemical stability of the hybrid electrolyte membranes improve with the incorporation of MAPOSS. The is up to 0.82 and the electrochemical window reaches 5.50 V. The Li/Li cell assembled with the POSS-containing single ion conductor gel polymer electrolytes can be subjected to stripping/plating cycles without short circuit over 2700 h at 0.1 mA cm, the peak of the SiO bond at 102.3 eV in the Si 2p spectrum confirms that the POSS participate in the formation of SEI, indicating that the incorporation of MAPOSS could increase the compatibility between the electrolytes and electrode. The Li|POSS-BSICP|LiFePO cell exhibits excellent cycle performance with a capacity retention over 90 % after 170 cycles and 82.0 % after 290 cycles at 0.1 C.

中文翻译：

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用于无枝晶锂金属电池的3D交联含POSS硼酸盐单离子导体有机-无机杂化凝胶电解质

目前，锂（Li）金属凭借其优异的理论容量和较低的电化学势，已成为下一代电池最有前途的负极。传统电解质与电极之间锂离子迁移数低、稳定性差限制了其发展。在这项工作中，通过新型合成的双烯丙二酸硼酸锂（LiBAMB）、聚（乙二醇）二丙烯酸酯（PEGDA）和含乙烯基的笼状聚（倍半硅氧烷）（MAPOSS），在季戊四醇四（巯基乙酸酯）（PETMP）作为交联剂和PVDF-HFP作为支撑材料的情况下，通过紫外热双固化程序。正如预期的那样，混合电解质膜的锂离子迁移数和电化学稳定性随着 MAPOSS 的加入而提高。高达0.82，电化学窗口达到5.50 V。用含POSS的单离子导体凝胶聚合物电解质组装的Li/Li电池可以在0.1 mA cm电流下进行2700小时的剥离/电镀循环而不发生短路， Si 2p 谱中 102.3 eV 处的 SiO 键峰证实了 POSS 参与了 SEI 的形成，表明 MAPOSS 的掺入可以增加电解质和电极之间的相容性。 Li|POSS-BSICP|LiFePO电池表现出优异的循环性能，在0.1 C下170次循环后容量保持率超过90%，290次循环后容量保持率超过82.0%。