초록 |
Forthcoming smart energy era, which will involve widespread use of electric vehicles, stationary energy storage systems, and flexible/wearable electronics, is in relentless pursuit of advanced rechargeable power sources. Here, we demonstrate cellulose nanofibrils (CNFs) as a multifunctional 1D building block for high-performance/flexible paper batteries. Firstly, CNF paper-based separator membranes for lithium-ion batteries will be presented, with a focus on their contribution to ion transport, thermal stability, and metal-ion chelating capability. Next, a new approach is suggested to fabricate CNF-based flexible all-paper lithium-ion batteries. The resultant paper batteries provide unprecedented advances in the electrochemical performance and shape flexibility, which lie far beyond those achievable with conventional battery technologies. We envision that the CNFs hold great promise as a promising 1D building block strategy to open a new route toward high-performance power sources. |