Carbon-encapsulated tungsten oxide nanowires as a stable and high-rate anode material for flexible asymmetric supercapacitors

2017 ◽  
Vol 5 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Chenzhong Yao ◽  
Bohui Wei ◽  
Hui Li ◽  
Gaofeng Wang ◽  
Qiuping Han ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Anode Material ◽  
High Energy ◽  
High Rate ◽  
Effective Strategy ◽  
Asymmetric Supercapacitors ◽  
Oxide Nanowires ◽  
Capacitive Performance

An effective strategy for carbon encapsulation was developed to increase the capacitive performance of WO3−x nanowires as a high-energy and stable anode material for flexible asymmetric supercapacitors.

Iron oxide encapsulated in nitrogen-doped carbon as high energy anode material for asymmetric supercapacitors

2019 ◽  
Vol 438 ◽  
pp. 227047 ◽  
Author(s):  
Jinhua Zhou ◽  
Shuchi Xu ◽  
Lu Ni ◽  
Ningna Chen ◽  
Xiaoge Li ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Anode Material ◽  
High Energy ◽  
Asymmetric Supercapacitors ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

High rate capability Li3V2¬xNix(PO4)3/C (x = 0, 0.05, and 0.1) cathodes for Li-ion asymmetric supercapacitors

2015 ◽  
Vol 3 (22) ◽  
pp. 11807-11816 ◽  
Author(s):  
Marco Secchiaroli ◽  
Gabriele Giuli ◽  
Bettina Fuchs ◽  
Roberto Marassi ◽  
Margret Wohlfahrt-Mehrens ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Power Density ◽  
Cycle Stability ◽  
High Rate Capability ◽  
Asymmetric Supercapacitors ◽  
Li Ion

Nanostructured Li3V2−xNix(PO4)3 (x = 0, 0.05, and 0.1) cathodes, thanks to their high rate capability and excellent cycle stability, are proposed as excellent candidates for the development of high energy and high power density Li-ion asymmetric supercapacitors.

A bottom-up synthetic hierarchical buffer structure of copper silicon nanowire hybrids as ultra-stable and high-rate lithium-ion battery anodes

2018 ◽  
Vol 6 (17) ◽  
pp. 7877-7886 ◽  
Author(s):  
Hucheng Song ◽  
Sheng Wang ◽  
Xiaoying Song ◽  
Huafeng Yang ◽  
Gaohui Du ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Anode Material ◽  
Silicon Nanowire ◽  
Lithium Ion ◽  
High Energy ◽  
High Rate ◽  
Next Generation ◽  
Bottom Up ◽  
Buffer Structure

Silicon (Si) is a promising anode material for next-generation high-energy lithium-ion batteries (LIBs).

Hybrid Electrodes Based on Zn–Ni–Co Ternary Oxide Nanowires and Nanosheets for Ultra-High-Rate Asymmetric Supercapacitors

2020 ◽  
Vol 3 (9) ◽  
pp. 8679-8690
Author(s):  
Jiwan Acharya ◽  
Tae Hoon Ko ◽  
Jae-Gyoung Seong ◽  
Min-Kang Seo ◽  
Myung-Seob Khil ◽  
...  
Keyword(s):  
High Rate ◽  
Ternary Oxide ◽  
Asymmetric Supercapacitors ◽  
Oxide Nanowires

scholarly journals In-Situ Annealed Ti3C2Tx MXene Based All-Solid-State Flexible Zn-Ion Hybrid Micro Supercapacitor Array with Enhanced Stability

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
La Li ◽  
Weijia Liu ◽  
Kai Jiang ◽  
Di Chen ◽  
Fengyu Qu ◽  
...  
Keyword(s):  
High Energy ◽  
High Rate ◽  
High Energy Density ◽  
Electrochemical Performances ◽  
Integrated Electronics ◽  
Long Term Stability ◽  
Hybrid Supercapacitors ◽  
Portable Electronics

AbstractZn-ion hybrid supercapacitors (SCs) are considered as promising energy storage owing to their high energy density compared to traditional SCs. How to realize the miniaturization, patterning, and flexibility of the Zn-ion SCs without affecting the electrochemical performances has special meanings for expanding their applications in wearable integrated electronics. Ti3C2Tx cathode with outstanding conductivity, unique lamellar structure and good mechanical flexibility has been demonstrated tremendous potential in the design of Zn-ion SCs, but achieving long cycling stability and high rate stability is still big challenges. Here, we proposed a facile laser writing approach to fabricate patterned Ti3C2Tx-based Zn-ion micro-supercapacitors (MSCs), followed by the in-situ anneal treatment of the assembled MSCs to improve the long-term stability, which exhibits 80% of the capacitance retention even after 50,000 charge/discharge cycles and superior rate stability. The influence of the cathode thickness on the electrochemical performance of the MSCs is also studied. When the thickness reaches 0.851 µm the maximum areal capacitance of 72.02 mF cm−2 at scan rate of 10 mV s−1, which is 1.77 times higher than that with a thickness of 0.329 µm (35.6 mF cm−2). Moreover, the fabricated Ti3C2Tx based Zn-ion MSCs have excellent flexibility, a digital timer can be driven by the single device even under bending state, a flexible LED displayer of “TiC” logo also can be easily lighted by the MSC arrays under twisting, crimping, and winding conditions, demonstrating the scalable fabrication and application of the fabricated MSCs in portable electronics.

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