scholarly journals All-Climate Aluminum-Ion Batteries Based on Binder-Free MOF-Derived FeS2@C/CNT Cathode

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yuxiang Hu ◽  
Hongjiao Huang ◽  
Deshuang Yu ◽  
Xinyi Wang ◽  
Linlin Li ◽  
...  
Keyword(s):  
Low Cost ◽  
Metal Organic Framework ◽  
Specific Capacity ◽  
High Capacity ◽  
Metal Sulfide ◽  
Side Reaction ◽  
Aluminum Ion ◽  
Long Term Stability ◽  
Rate Capacity ◽  
Binder Free

AbstractAluminum-ion batteries (AIBs) are promising next-generation batteries systems because of their features of low cost and abundant aluminum resource. However, the inferior rate capacity and poor all-climate performance, especially the decayed capacity under low temperature, are still critical challenges toward high-specific-capacity AIBs. Herein, we report a binder-free and freestanding metal–organic framework-derived FeS2@C/carbon nanotube (FeS2@C/CNT) as a novel all-climate cathode in AIBs working under a wide temperature window between −25 and 50 °C with exceptional flexibility. The resultant cathode not only drastically suppresses the side reaction and volumetric expansion with high capacity and long-term stability but also greatly enhances the kinetic process in AIBs with remarkable rate capacity (above 151 mAh g−1 at 2 A g−1) at room temperature. More importantly, to break the bottleneck of the inherently low capacity in graphitic material-based all-climate AIBs, the new hierarchical conductive composite FeS2@C/CNT highly promotes the all-climate performance and delivers as high as 117 mAh g−1 capacity even under −25 °C. The well-designed metal sulfide electrode with remarkable performance paves a new way toward all-climate and flexible AIBs.

scholarly journals Improvement of long-term cycling performance of high-nickel cathode materials by ZnO coating

2021 ◽  
Vol 10 (1) ◽  
pp. 210-220
Author(s):  
Fangfang Wang ◽  
Ruoyu Hong ◽  
Xuesong Lu ◽  
Huiyong Liu ◽  
Yuan Zhu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Solid Phase ◽  
Low Cost ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Side Reaction ◽  
Chemical Route ◽  
High Nickel

Abstract The high-nickel cathode material of LiNi0.8Co0.15Al0.05O2 (LNCA) has a prospective application for lithium-ion batteries due to the high capacity and low cost. However, the side reaction between the electrolyte and the electrode seriously affects the cycling stability of lithium-ion batteries. In this work, Ni2+ preoxidation and the optimization of calcination temperature were carried out to reduce the cation mixing of LNCA, and solid-phase Al-doping improved the uniformity of element distribution and the orderliness of the layered structure. In addition, the surface of LNCA was homogeneously modified with ZnO coating by a facile wet-chemical route. Compared to the pristine LNCA, the optimized ZnO-coated LNCA showed excellent electrochemical performance with the first discharge-specific capacity of 187.5 mA h g−1, and the capacity retention of 91.3% at 0.2C after 100 cycles. The experiment demonstrated that the improved electrochemical performance of ZnO-coated LNCA is assigned to the surface coating of ZnO which protects LNCA from being corroded by the electrolyte during cycling.

scholarly journals Improved lithium-ion battery anode capacity with a network of easily fabricated spindle-like carbon nanofibers

2016 ◽  
Vol 7 ◽  
pp. 1289-1295 ◽  
Author(s):  
Mengting Liu ◽  
Wenhe Xie ◽  
Lili Gu ◽  
Tianfeng Qin ◽  
Xiaoyi Hou ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Lithium Ion ◽  
Carbon Matrix ◽  
Reversible Capacity ◽  
Excellent Electrochemical Performance ◽  
Rate Capacity ◽  
Binder Free ◽  
Carbon Network

A novel network of spindle-like carbon nanofibers was fabricated via a simplified synthesis involving electrospinning followed by preoxidation in air and postcarbonization in Ar. Not only was the as-obtained carbon network comprised of beads of spindle-like nanofibers but the cubic MnO phase and N elements were successfully anchored into the amorphous carbon matrix. When directly used as a binder-free anode for lithium-ion batteries, the network showed excellent electrochemical performance with high capacity, good rate capacity and reliable cycling stability. Under a current density of 0.2 A g−1, it delivered a high reversible capacity of 875.5 mAh g−1 after 200 cycles and 1005.5 mAh g−1 after 250 cycles with a significant coulombic efficiency of 99.5%.

Synthesis of Bi2S3/MoS2 Nanorods and Their Enhanced Electrochemical Performance for Aluminum Ion Batteries

2020 ◽  
Vol 17 (3) ◽  
Author(s):  
Shimeng Zhao ◽  
Jialin Li ◽  
Haixia Chen ◽  
Jianxin Zhang
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Low Cost ◽  
Specific Capacity ◽  
Discharge Voltage ◽  
Aluminum Ion ◽  
High Charge Density ◽  
Initial Charge ◽  
New Type ◽  
The Stability

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.

scholarly journals Binder-Free V2O5 Cathode for High Energy Density Rechargeable Aluminum-Ion Batteries

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 247 ◽  
Author(s):  
Diem ◽  
Fenk ◽  
Bill ◽  
Burghard
Keyword(s):  
Energy Density ◽  
Metal Ion ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Aluminum Ion ◽  
Future Design ◽  
Aluminum Ions ◽  
Binder Free

Nowadays, research on electrochemical storage systems moves into the direction of post-lithium-ion batteries, such as aluminum-ion batteries, and the exploration of suitable materials for such batteries. Vanadium pentoxide (V2O5) is one of the most promising host materials for the intercalation of multivalent ions. Here, we report on the fabrication of a binder-free and self-supporting V2O5 micrometer-thick paper-like electrode material and its use as the cathode for rechargeable aluminum-ion batteries. The electrical conductivity of the cathode was significantly improved by a novel in-situ and self-limiting copper migration approach into the V2O5 structure. This process takes advantage of the dissolution of Cu by the ionic liquid-based electrolyte, as well as the presence of two different accommodation sites in the nanostructured V2O5 available for aluminum-ions and the migrated Cu. Furthermore, the advanced nanostructured cathode delivered a specific discharge capacity of up to ~170 mAh g−1 and the reversible intercalation of Al3+ for more than 500 cycles with a high Coulomb efficiency reaching nearly 100%. The binder-free concept results in an energy density of 74 Wh kg−1, which shows improved energy density in comparison to the so far published V2O5-based cathodes. Our results provide valuable insights for the future design and development of novel binder-free and self-supporting electrodes for rechargeable multivalent metal-ion batteries associating a high energy density, cycling stability, safety and low cost.

Revealing Practical Specific Capacity and Carbonyl Utilization of Multi-carbonyl Compounds for Organic Cathode Materials

2021 ◽  
Author(s):  
Jun-Lin Shi ◽  
Shi-Qin Xiang ◽  
Dai-Jian Su ◽  
Rongxing He ◽  
Liu-Bin Zhao
Keyword(s):  
Environmental Protection ◽  
Cathode Materials ◽  
Carbonyl Compounds ◽  
Low Cost ◽  
Specific Capacity ◽  
High Capacity ◽  
Rechargeable Batteries ◽  
Next Generation

Organic carbonyl compounds are regarded as promising candidates for next-generation rechargeable batteries in terms of low cost, environmental protection, and high capacity. The carbonyl utilization is a key issue to...

Morella-rubra-like metal–organic-framework-derived multilayered Co3O4/NiO/C hybrids as high-performance anodes for lithium storage

2017 ◽  
Vol 5 (46) ◽  
pp. 24269-24274 ◽  
Author(s):  
Yongzhe Wang ◽  
Mingguang Kong ◽  
Ziwei Liu ◽  
Chucheng Lin ◽  
Yi Zeng
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Metal Organic Framework ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Metal Organic ◽  
Rate Capacity ◽  
Organic Framework

Multilayered Co3O4/NiO/C electrodes with a ball-in-ball hollow morphology are employed in lithium-ion batteries and deliver an excellent rate capacity of 421 mA h g−1 at 4 A g−1 and a high capacity of 776 mA h g−1 over 1000 cycles at 1 A g−1.

scholarly journals Cr2P2O7 as a Novel Anode Material for Sodium and Lithium Storage

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3139
Author(s):  
Shuo Wang ◽  
Tianyuan Zhu ◽  
Fei Chen ◽  
Xiang Ding ◽  
Qiao Hu ◽  
...  
Keyword(s):  
Anode Material ◽  
Low Cost ◽  
High Capacity ◽  
Lithium Ion ◽  
Side Reaction ◽  
Carbon Layer ◽  
Electrochemical Process ◽  
Lithium Storage ◽  
Solid State Method

The development of new appropriate anode material with low cost is still main issue for sodium-ion batteries (SIBs) and lithium-ion batteries (LIBs). Here, Cr2P2O7 with an in-situ formed carbon layer has been fabricated through a facile solid-state method and its storage performance in SIBs and LIBs has been reported first. The Cr2P2O7@C delivers 238 mA h g−1 and 717 mA h g−1 at 0.05 A g−1 in SIBs and LIBs, respectively. A capacity of 194 mA h g−1 is achieved in SIBs after 300 cycles at 0.1 A g−1 with a high capacity retention of 92.4%. When tested in LIBs, 351 mA h g−1 is maintained after 600 cycles at 0.1 A g−1. The carbon coating layer improves the conductivity and reduces the side reaction during the electrochemical process, and hence improves the rate performance and enhances the cyclic stability.

Mn2O3/Al2O3 cathode material derived from a metal–organic framework with enhanced cycling performance for aqueous zinc-ion batteries

2020 ◽  
Vol 49 (3) ◽  
pp. 711-718 ◽  
Author(s):  
Lei Gou ◽  
Ke-Liang Mou ◽  
Xiao-Yong Fan ◽  
Ming-Juan Zhao ◽  
Yue Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Cathode Material ◽  
Large Scale ◽  
Low Cost ◽  
Metal Organic Framework ◽  
High Capacity ◽  
Cycling Performance ◽  
Zinc Ion ◽  
Environmental Friendliness ◽  
Metal Organic

Rechargeable aqueous zinc-ion batteries (ZIBs) are considered to be potential candidates for large-scale energy storage due to their high capacity, low cost, high safety and environmental friendliness.

scholarly journals Characterization and Preparation of Nano-porous Carbon Derived from Hemp Stems as Anode for Lithium-Ion Batteries

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Zhongxiang Guan ◽  
Zhiping Guan ◽  
Zhigang Li ◽  
Junhui Liu ◽  
Kaifeng Yu
Keyword(s):  
Activated Carbon ◽  
Lithium Ion Batteries ◽  
Porous Carbon ◽  
Low Cost ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Biomass Waste ◽  
Rapid Preparation

Abstract As a biomass waste, hemp stems have the advantages of low cost and abundance, and it is regarded as a promising anode material with a high specific capacity. In this paper, activated carbon derived from hemp stems is prepared by low-temperature carbonization and high-temperature activation. The results of characterizations show the activated carbon has more pores due to the advantages of natural porous structure of hemp stem. The aperture size is mainly microporous, and there are mesopores and macropores in the porous carbon. The porous carbon has an excellent reversible capacity of 495 mAh/g after 100 cycles at 0.2 °C as the anode of lithium-ion battery. Compared with the graphite electrode, the electrochemical property of activated carbon is significantly improved due to the reasonable distribution of pore size. The preparation of the activated carbon provides a new idea for low cost and rapid preparation of anode materials for high capacity lithium-ion batteries.

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