A high-performance rocking-chair lithium-ion battery-supercapacitor hybrid device boosted by doubly matched capacity and kinetics of faradaic electrodes

Author(s):  
Feng Su ◽  
Jieqiong Qin ◽  
Pratteek Das ◽  
Feng Zhou ◽  
Zhong-Shuai Wu

Battery-supercapacitor hybrid devices (BSHDs) are promising for certain applications requiring both high energy and power densities, but restricted by the electrolyte-consuming mechanism and imbalance of charge-storage capacity and electrode kinetics...

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Xudong Zhang ◽  
Xiaolong Xu ◽  
Yuebo Hu ◽  
Guogang Xu ◽  
Wen He ◽  
...  

AbstractTo develop battery-supercapacitor hybrid devices with high energy and power densities, we propose a rational design of a quaternary hybrid superstructure by using a high-energy biotemplate. This new superstructure is composed of stable fullerene C60 nanocages, electroactive Na4FeO3, high-energy Li3V2(PO4)3 and soft carbon as well as tubular ordered mesoporous channels. This design takes advantage of the unique properties of each component, resulting in nanocomposites with synergistic effects to improve the charge transfer and energy storage. We found that this quaternary hybrid electrode has both high energy and power densities as well as a long cycling life in a Li/Na mixed-ion electrolyte, outperforming a multitude of other battery-supercapacitor hybrid devices reported thus far. The charge storage mechanisms of this hybrid superstructure are proposed for optimizing the electrode design.


2019 ◽  
Vol 7 (6) ◽  
pp. 2855-2863 ◽  
Author(s):  
Xu Zhang ◽  
Jinyu Zhang ◽  
Shuying Kong ◽  
Kai Zhu ◽  
Jun Yan ◽  
...  

In this paper, for the first time, we investigated MnNb2O6 as a new rate capability type anode material for lithium-ion capacitors (LICs), which exhibit excellent charge storage capacity and reasonably superior cycling stability.


2021 ◽  
Author(s):  
Jian Hao ◽  
Jun Bai ◽  
Xiu Wang ◽  
Yanxia Wang ◽  
Qingjie Guo ◽  
...  

To circumvent the imbalances of electrochemical kinetics and charge-storage capacity between Li+ ion battery anodes and capacitive cathodes in lithium-ion capacitors (LICs), dual carbon based LICs are constructed and investigated extensively.


2021 ◽  
Author(s):  
Chengwei Gao ◽  
Zhenjing Jiang ◽  
Peixing Wang ◽  
Lars Rosgaard Jensen ◽  
Yanfei Zhang ◽  
...  

<p>Metal organic frameworks (MOFs) hold great promise as high-energy anode materials for next-generation lithium ion batteries (LIBs) due to their tuneable pore structure and abundant reaction sites. However, since the pore structure of crystalline MOFs tends to collapse during lithium ion insertion and extraction, it has been a challenge to develop crystalline MOF-based anodes for high performance lithium ion batteries. Here we report a breakthrough in developing the high-performance MOF anodes. In detail, we have developed the first MOF glass anode, i.e., melt-quenched Cobalt-ZIF-62 glass anode with exceptional electrochemical performances. Compared with its crystalline counterpart, the Co-ZIF-62 glass anode exhibits significantly higher lithium storage capacity (306 mAh g<sup>-1</sup> after 1000 cycles at the current density of 2 A g<sup>-1</sup>), outstanding cycling stability and superior rate performance. Amazingly, the Li-ion storage capacity of the MOF glass anode continuously rises with increasing the number of charge-discharge cycles and even <i>tripled</i> after 1000 cycles. We revealed the possible origin of the unusual cycling-enhanced performances of the MOF glass anode. These superior performances make MOF glasses ideal candidates for anode materials for LIBs. </p>


2021 ◽  
Author(s):  
Chengwei Gao ◽  
Zhenjing Jiang ◽  
Peixing Wang ◽  
Lars Rosgaard Jensen ◽  
Yanfei Zhang ◽  
...  

<p>Metal organic frameworks (MOFs) hold great promise as high-energy anode materials for next-generation lithium ion batteries (LIBs) due to their tuneable pore structure and abundant reaction sites. However, since the pore structure of crystalline MOFs tends to collapse during lithium ion insertion and extraction, it has been a challenge to develop crystalline MOF-based anodes for high performance lithium ion batteries. Here we report a breakthrough in developing the high-performance MOF anodes. In detail, we have developed the first MOF glass anode, i.e., melt-quenched Cobalt-ZIF-62 glass anode with exceptional electrochemical performances. Compared with its crystalline counterpart, the Co-ZIF-62 glass anode exhibits significantly higher lithium storage capacity (306 mAh g<sup>-1</sup> after 1000 cycles at the current density of 2 A g<sup>-1</sup>), outstanding cycling stability and superior rate performance. Amazingly, the Li-ion storage capacity of the MOF glass anode continuously rises with increasing the number of charge-discharge cycles and even <i>tripled</i> after 1000 cycles. We revealed the possible origin of the unusual cycling-enhanced performances of the MOF glass anode. These superior performances make MOF glasses ideal candidates for anode materials for LIBs. </p>


2017 ◽  
Vol 727 ◽  
pp. 688-692
Author(s):  
Ji Xiang Chen ◽  
Dong Lin Zhao ◽  
Ze Wen Ding ◽  
Cheng Li ◽  
Xia Jun Wang ◽  
...  

Shuttle-like CuO has been synthesized by treating commercial Cu(OH)2 powder at room temperature for an appropriate time. As anode material of lithium-ion batteries, shuttle-like CuO exhibits high specific capacity, high stability, and good rate performance, superior to commercial CuO powder. The shuttle-like CuO exhibited a high specific capacitance of 456.8 mAh g-1 at a current density of 100 mAg-1 and maintained a good stability in 50 cycles, suggesting that it can be a promising candidate for lithium-ion batteries. The high specific capacitance and remarkable rate capability are promising for applications in lithium-ion batteries with both high energy and power densities.


Author(s):  
Jian Zhao ◽  
He Cheng ◽  
Huanyu Li ◽  
Yan-Jie Wang ◽  
Qingyan Jiang ◽  
...  

Developing advanced negative and positive electrode materials for asymmetric supercapacitors (ASCs) as the electrochemical energy storage can enable the device to reach high energy/power densities resulting from the cooperative effect...


RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10018-10026
Author(s):  
Chang Liu ◽  
Zeyin He ◽  
Jianmin Niu ◽  
Qiang Cheng ◽  
Zongchen Zhao ◽  
...  

In this work, we have fabricated lithium-ion capacitor using SnO2/PCN as anode and waste coffee grounds derived PCN as cathode, which delivers good combination of high energy and power characteristics.


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