Amorphous red phosphorus incorporated with pyrolyzed bacterial cellulose as a free-standing anode for high-performance lithium ion batteries

作者：Yang, Hongyu; Li, Yu; Long, Peng; Han, Junkai; Cao, Chen; Yao, Fengnan; Feng, Wei^*

来源：RSC Advances, 2018, 8(31): 17325-17333.

DOI：10.1039/c8ra02370k

• DOPED GRAPHENE PAPER
• BLACK PHOSPHORUS
• MESOPOROUS CARBON
• SUPERIOR LITHIUM
• REDUCED GRAPHENE
• HIGH-CAPACITY
• COMPOSITE
• STORAGE
• ELECTRODE
• ENERGY

Amorphous red phosphorus/pyrolyzed bacterial cellulose (P-PBC) free-standing films are prepared by thermal carbonization and a subsequent vaporization-condensation process. The distinctive bundle-like structure of the flexible pyrolyzed bacterial cellulose (PBC) matrix not only provides sufficient volume to accommodate amorphous red-phosphorus (P) but also restricts the pulverization of red-P during the alternate lithiation/delithiation process. When the mass ratio of raw materials, red-P to PBC, is 70 : 1, the free-standing P-PBC film anode exhibits high reversible capacity based on the mass of the P-PBC film (1039.7 mA h g(-1) after 100 cycle at 0.1C, 1C = 2600 mA g(-1)) and good cycling stability at high current density (capacity retention of 82.84% after 1000 cycles at 2C), indicating its superior electrochemical performances.

• 出版日期2018
• 单位天津大学