{'fraction_non_alphanumeric': 0.03536693191865606, 'fraction_numerical': 0.007073386383731211, 'mean_word_length': 5.053475935828877, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Designing Comb-Chain Crosslinker-Based Solid Polymer Electrolytes for Additive-Free All-Solid-State Lithium Metal Batteries.

Developing solid polymer electrolytes (SPEs) is a promising approach to realize practical dendrite-free lithium metal batteries (LMBs). Tuning the nanoscale polymer network chemsitry is of critical importance for SPE design. In this work, we take lessons from the rubber chemistry and develop a series of comb-chain crosslinker-based SPEs (ConSPEs) using a preformed polymer as the multifunctional crosslinker. The high-functionality cross-linker increases the connectivity of nanosized cross-linked domains, which leads to a robust network with dramatically improved toughness and superior lithium dendrite resistance even at a current density of 2 mA cm-2. The uniform and flexile network also dramatically improves the anodic stability to over 5.3 V vs. Li/Li+. Additive-free, all-solid-state LMBs with the ConSPE show high discharge capacity and stable cycling up to 10 C rate, and can be stably cycled at 25 °C. Our results show that ConSPEs are promising for high-performance and dendrite-free LMBs.