Boron-doping-induced Defect Engineering Enables High-performance Graphene Cathode for Aluminum Batteries

Author(s):  
Yiqun Du ◽  
Boya Zhang ◽  
Rongkai Kang ◽  
Wei Zhou ◽  
Wenyang Zhang ◽  
...  

Rechargeable aluminum batteries (RABs) have received significant interest due to the low cost, high volumetric capacity, and low flammability of aluminum. However, the paucity of reliable cathode materials poses substantial...

Author(s):  
Fangkun Li ◽  
Zhengbo Liu ◽  
Jiadong Shen ◽  
Xijun Xu ◽  
Liyan Zeng ◽  
...  

Ni-rich LiNixCoyMn1-x-yO2 (x 0.6) layered oxide cathodes are one of the most promising cathode materials for lithium-ion batteries owing to their superior capacity, prominent energy density and low cost. However,...


Author(s):  
Shimeng Zhao ◽  
Jialin Li ◽  
Haixia Chen ◽  
Jianxin Zhang

Abstract Rechargeable aluminum ion batteries (AIBs) have attracted much attention because of their high charge density, low cost, and low flammability. Transition metal sulfides are a class of cathode materials that have been extensively studied. In this report, Bi2S3 nanorods and Bi2S3/MoS2 nanorods were synthesized by the hydrothermal method as new type of cathode materials for rechargeable AIBs. The diameter of Bi2S3/MoS2 nanorods is 20–100 nm. The Bi2S3 nanorods display high initial charge and discharge capacities of 343.3 and 251 mA h/g with a current density of 1 A/g. The static cycling for the Bi2S3/MoS2 nanorods electrode at 1 A/g denotes high stability with a specific capacity of 132.9 mA h/g after 100 cycles. The charging voltage platform of Bi2S3 nanorods and Bi2S3/MoS2 nanorods is at 1.1–1.4 V, and the discharge voltage platform is at around 0.8 V. The well-defined heterojunction maintains the stability of the Bi2S3 structure during long-term cycling, which is desirable for aluminum ion batteries. This strategy reveals new insights for designing cathode materials of high-performance AIBs.


2020 ◽  
Author(s):  
Minami Kato ◽  
Titus Masese ◽  
Kazuki Yoshii

<b>Potassium-ion batteries have been envisioned to herald the age of low-cost and high-performance energy storage systems. However, the sparsity of viable components has dampened the progress of these energy devices. Thus, herein, we report coronene, a high-voltage cathode material that manifests a high-voltage of 4.1 V enkindled by anion (de)insertion. This work not only illuminates the broad class of polycyclic aromatic hydrocarbons as prospective cathode materials but also sets a new benchmark for the performance of future organic cathode materials.</b>


2011 ◽  
Vol 1331 ◽  
Author(s):  
Stefan Adams

ABSTRACTLinking the bond valence mismatch to the absolute energy scale, a generally applicable Morse-type force-field is developed and applied to study ion conduction in mixed conducting solids using both an energy landscape approach and molecular dynamics (MD) simulations. Exploring strategies to enhance the power performance of safe low cost lithium ion battery cathode materials, amblygonite-type “high voltage” cathode materials LiVPO4F and LiFeSO4F are used as examples. The amblygonite-type structure exhibits channels for low-energy migration in combination with moderate energy thresholds for "back-up" pathways in perpendicular directions mitigating the effects of channel blocking in mixed conductors with strictly one-dimensional Li+ motion.


2020 ◽  
Vol 392 ◽  
pp. 123652 ◽  
Author(s):  
Yongquan Zhang ◽  
Guang Liu ◽  
Changhai Zhang ◽  
Qingguo Chi ◽  
Tiandong Zhang ◽  
...  

2020 ◽  
Author(s):  
Minami Kato ◽  
Titus Masese ◽  
Kazuki Yoshii

<b>Potassium-ion batteries have been envisioned to herald the age of low-cost and high-performance energy storage systems. However, the sparsity of viable components has dampened the progress of these energy devices. Thus, herein, we report coronene (not to be confused with ‘corona’), a high-voltage cathode material that manifests a high-voltage of 4.1 V enkindled by anion (de)insertion. This work not only illuminates the broad class of polycyclic aromatic hydrocarbons as prospective cathode materials but also sets a new benchmark for the performance of future organic cathode materials. It would be remiss not to mention that the timing of this submission is not related to the ongoing COVID-19 pandemic and any similarities noted herein are coincidental. On the other hand, as a silver lining, this work epitomises a beacon of hope in these despairing times.</b>


Nano Energy ◽  
2019 ◽  
Vol 56 ◽  
pp. 160-168 ◽  
Author(s):  
Tianci Yuan ◽  
Yanxia Wang ◽  
Jiexin Zhang ◽  
Xiangjun Pu ◽  
Xinping Ai ◽  
...  

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