SnO2-graphene nanocomposite paper as both the anode and current collector of lithium ion battery with high performance and flexibility

摘要

SnO2-graphene nanocomposites (SGNs) are synthesized by a facile hydrothermal method, and SGN paper as both the anode and current collector of lithium-ion battery has been investigated. The paper exhibits high capacity, good cyclability, lightweight and excellent flexibility. At 0.1 C rate (10 h per half cycle), the discharge capacity of SGN paper is 1195 mAh g(-1) at 10th cycle and can maintain at 1094 mAh g(-1) after 80 cycles. The paper based flexible cells also show high performance. It can be attributed to the synergistic effect. The present results indicate that SGN paper is one of good candidates for fabricating flexible lithium-ion batteries. (C) 2017 Elsevier B.V. All rights reserved.