A metal organic framework-derived octahedral CuS@CoS for secondary batteries displaying long cycle life and stable temperature tolerance.

Low-cost and safe batteries are considered to be promising energy-storage systems. Here, a metal organic framework (MOF)-derived octahedral CuS@CoS composite is developed as a high-performance cathode of aluminium-ion (Al-ion) batteries. CoS nanoparticles on CuS provide active sites, making AlCl intercalation/deintercalation highly reversible, and reducing polarization.

A nanowire-on-microrod polyaniline@FeS hybrid as the cathode in high-performance Al-ion batteries.

A nanowire-on-microrod structured polyaniline (PANI)@FeS hybrid was developed a facile metal-organic framework (MOF)-derived chemical method. The grown PANI nanowires on the surface of pyramidal FeS microrods displayed better mechanical flexibility and improved Al-storage performance. The PANI nanowires not only enhanced electron transfer during the electrochemical reaction, but also accommodated the volume expansion of FeS during discharge.

A Pyramidal Metal-Organic Frameworks-Derived FeP@CoP Aluminium-Ion Battery Cathode Displaying Low-Temperature Tolerance and Fast Electron Transfer Kinetics.

Anhui Provincial Engineering Laboratory for Engineering appropriate cathode materials is significant for the development of high-performance aluminum-ion (Al-ion) batteries. Here, a pyramidal metal-organic frameworks (MOFs)-derived FeP@CoP composite was developed as cathode, which exhibits good stability and high capacity. FeP@CoP cathode maintains a high capacity of 168 mAh g after 200 cycles, and displays a stable rate-performance at both room and low temperatures of -10 °C.

Rational engineering NiMoOnanosheets or MnOnanowires on FeOmicrodiscs as novel hierarchical anodes for high-performance lithium-ion batteries.

Since current graphite-based lithium-ion battery anode has a low theoretical capacity, the development of high-performance lithium-ion battery is severely restricted. Here, novel hierarchical composites composing of microdisc and the secondarily grown nanosheets and nanowires are developed, taking NiMoOnanosheets and MnOnanowires growing on FeOmicrodiscs as demonstrating examples. The growth processes of the hierarchical structures have been investigated by adjusting a series of preparation conditions.

A lamellar VO@C composite for aluminium-ion batteries displaying long cycle life and low-temperature tolerance.

Rechargeable aluminum-ion (Al-ion) batteries have important potential for fast charging and safe energy-storage systems. Here, we develop a composite composed of lamellar VO@C nanosheets, which displays high electrochemical properties as an Al-ion battery cathode. The unique structure is conducive to the rapid insertion and release of Al ions, electrolyte infiltration, and improved conductivity.