题目：Reversible Lithium-Ion Uptake in Poly(methylmethacrylate) Thin-Film via Lithiation/Delithiation at In Situ Formed Intramolecular Cyclopentanedione
作 者：Yan Wang1, Li Zhang,1* Liya Zhang1, Fei Zhang1, Ping He2, Honghe Zheng,1* and Haoshen Zhou2*
单 位：1College of Physics Optoelectronics and Energy and Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University
2Center of Energy Storage Materials and Technology College of Engineering and Applied Sciences National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Nanjing University
摘 要：Herein, it is proposed that poly(methylmethacrylate) (PMMA), a widely-used
thermoplastic in our daily life, can be used as an abundant, stable, and high-performance anode material for rechargeable lithium-ion batteries through a novel concept of lithium storage mechanism. The specially-designed PMMA thinfilm electrode exhibits a high reversible capacity of 343 mA h g?1 at C/25 and maintains a capacity retention of 82.6% of that obtained at C/25 when cycled at 1 C rate. Meanwhile, this pristine PMMA electrode without binder and conductive agents shows a high reversible capacity of 196.8 mA h g?1 after 150 cycles at 0.2 C with a capacity retention of 73.5%. Additionally, PMMA-based binder is found to enhance both the reversible capacity and rate capability of the graphite electrodes. Hence, this new type of organic electrode material may have a great opportunity to be utilized as the active material or rechargeable binder in flexible or transparent thin-film batteries and all-solid batteries. The present work also provides a new way of seeking more proper organic electrode materials which don’t contain conjugated structures and atoms with lone pair electrons required in traditional organic electrode materials.