High performance isomeric Fe2O3 nanospheres anode materials derived from industrial wastewater for lithium ion batteries

Hematite microdisks as an alternative anode material for lithium-ion batteries

“…has been explored and extensively studied [1]. Among them, hematite (Fe2O3) with very high theoretical capacity (1007 mAh g -1 ), non-toxic nature and six times higher volumetric capacity than that of graphite (5.24 g cm -3 for Fe2O3 vs. 2.16 g cm -3 for graphite) has been explored extensively [2][3][4][5][6][7][8]. However, the large volume changes during the electrochemical lithiation/delithiation process leads to poor capacity retention, which limits its practical applications.…”

Biological Metabolism Synthesis of Metal Oxides Nanorods from Bacteria as a Biofactory toward High‐Performance Lithium‐Ion Battery Anodes

“…So far, one effective approach to improve the cycle life and rate performance is to rationally design and fabricate delicate nanostructured α‐Fe 2 O 3 that can not only shorten Li + diffusion pathways but also alleviate volume expansion . Although a variety of nanostructured α‐Fe 2 O 3 including nanorods, nanowires, nanotubes, nanosheets, nanospheres, and nanoparticles are widely verified to overcome the aforementioned issues in the past decades, the conventional physical/chemical synthetic methods extensively involve complex chemical reactions, high hazardous and expansive reagents, and high energy and time consumption, which is a huge challenge for the large‐scale application of nanostructured α‐Fe 2 O 3 anodes in LIBs.…”