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Polymer-Stabilized Liquid Metal Nanoparticles as a Scalable Current Collector Engineering Approach Enabling Lithium Metal Anodes

https://doi.org/10.1021/acsaem.1c04106

Liu, Tong; Wu, Xinsheng; Zhu, Shang; Lorandi, Francesca; Ni, Longchang; Li, Sipei; Sun, Mingkang; Bloom, Brian P.; Waldeck, David H.; Viswanathan, Venkatasubramanian; et al (March 2022, ACS Applied Energy Materials)

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Highly Conductive Polyoxanorbornene‐Based Polymer Electrolyte for Lithium‐Metal Batteries

https://doi.org/10.1002/advs.202302932

An, So Young; Wu, Xinsheng; Zhao, Yuqi; Liu, Tong; Yin, Rongguan; Ahn, Jung Hyun; Walker, Lynn M.; Whitacre, Jay F.; Matyjaszewski, Krzysztof (July 2023, Advanced Science)

Abstract This present study illustrates the synthesis and preparation of polyoxanorbornene‐based bottlebrush polymers with poly(ethylene oxide) (PEO) side chains by ring‐opening metathesis polymerization for solid polymer electrolytes (SPE). In addition to the conductive PEO side chains, the polyoxanorbornene backbones may act as another ion conductor to further promote Li‐ion movement within the SPE matrix. These results suggest that these bottlebrush polymer electrolytes provide impressively high ionic conductivity of 7.12 × 10⁻⁴S cm⁻¹at room temperature and excellent electrochemical performance, including high‐rate capabilities and cycling stability when paired with a Li metal anode and a LiFePO₄cathode. The new design paradigm, which has dual ionic conductive pathways, provides an unexplored avenue for inventing new SPEs and emphasizes the importance of molecular engineering to develop highly stable and conductive polymer electrolytes for lithium‐metal batteries (LMB).
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Tailored PVDF Graft Copolymers via ATRP as High-Performance NCM811 Cathode Binders

https://doi.org/10.1021/acsmaterialslett.3c00485

Liu, Tong; Parekh, Rohan; Mocny, Piotr; Bloom, Brian P.; Zhao, Yuqi; An, So Young; Pan, Bonian; Yin, Rongguan; Waldeck, David H.; Whitacre, Jay F.; et al (August 2023, ACS Materials Letters)