Fu, Fang; Lu, Wei; Zheng, Yue; Chen, Kai; Sun, Chen; Cong, Lina; Liu, Yulong; Xie, Haiming; Sun, Liqun published the artcile< Regulating lithium deposition via bifunctional regular-random cross-linking network solid polymer electrolyte for Li metal batteries>, Reference of 112-63-0, the main research area is cross linking network solid polymer lithium metal battery electrolyte.
The low coulombic efficiency and poor cycle performance deriving from uncontrolled growth of dendrites have caused a serious obstacle to the practical application of lithium metal. Herein we propose a bifunctional regular-random dual crosslinking network solid polymer electrolyte (RRa-SPE) for dendrite-free all-solid-state lithium metal batteries. Under the synergistic effect of regular polymerization skeleton and random crosslinking network, the RRa-SPE effectively regulates the lithium deposition and facilitates the generation of a highly homogeneous and robust solid-electrolyte interphase (SEI) layer on lithium metal. Besides, this RRa-SPE shows benign ionic conductivity of 4.36 x 10-4 S cm-1 (at 30°C), high lithium ion transference number of 0.76 and enhanced mech. strength. The Li/RRa-SPE/Li sym. cell maintains low and stable voltage polarization (0.15 V) after circulating for 1200 h at 0.5 mA cm-2. Improved LiFePO4/RRa-SPE/Li cell exhibits excellent rate capability and prominent cycle performance with a capacity retention of 99.6% after 240 cycles at 0.5 C at 30°C.
Journal of Power Sources published new progress about Battery anodes. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.
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