Phosphorus-doped porous hollow carbon nanorods for high-performance sodium-based dual-ion batteries

2020 ◽  
Vol 8 (7) ◽  
pp. 4007-4016 ◽  
Author(s):  
Xiaoyan Wang ◽  
Shaofeng Wang ◽  
Kaixiang Shen ◽  
Shenggong He ◽  
Xianhua Hou ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Structural Stability ◽  
High Performance ◽  
Electronic Conductivity ◽  
High Electronic Conductivity ◽  
Hollow Carbon ◽  
Phosphorus Doped

Phosphorus-doped hollow carbon nanorods with high electronic conductivity can maintain excellent structural stability and endow outstanding electrochemical performance in sodium-based dual-ion batteries.

MnCo2O4 decorated Magnéli phase titanium oxide as a carbon-free cathode for Li–O2 batteries

2017 ◽  
Vol 5 (37) ◽  
pp. 19991-19996 ◽  
Author(s):  
Xuecheng Cao ◽  
Zhihui Sun ◽  
Xiangjun Zheng ◽  
Jinghua Tian ◽  
Chao Jin ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Electrocatalytic Activity ◽  
High Performance ◽  
Electronic Conductivity ◽  
Synergistic Interaction ◽  
High Electronic Conductivity ◽  
Magnéli Phase ◽  
First Time ◽  
Magneli Phase

The application of MnCo2O4 (MCO) decorated Ti4O7 as a carbon-free cathode for Li–O2 batteries is reported for the first time. The high performance of Ti4O7/MCO cathode is attributed to the high electronic conductivity of Ti4O7, the high electrocatalytic activity of MCO and the synergistic interaction between Ti4O7 and MCO toward ORR and OER.

scholarly journals Al-doped α-MnO2 coated by lignin for high-performance rechargeable aqueous zinc-ion batteries

RSC Advances ◽  
2021 ◽  
Vol 11 (56) ◽  
pp. 35280-35286
Author(s):  
Jingliang Xu ◽  
Xinhang Hu ◽  
Md Asraful Alam ◽  
Gul Muhammad ◽  
Yongkun Lv ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Structural Stability ◽  
High Performance ◽  
Zinc Ion

Al3+ doping combined with lignin coating improves the structural stability and electrochemical performance of the modified α-MnO2, L + Al@α-MnO2.

Mesoporous Fe3O4@C submicrospheres evolved by a novel self-corrosion mechanism for high-performance lithium-ion batteries

2014 ◽  
Vol 38 (6) ◽  
pp. 2428-2434 ◽  
Author(s):  
Yongping Gan ◽  
Huaqing Gu ◽  
Han Xiao ◽  
Yang Xia ◽  
Xinyong Tao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Structural Stability ◽  
High Performance ◽  
Lithium Ion ◽  
High Conductivity ◽  
Corrosion Mechanism

Mesoporous Fe3O4@C submicrospheres with high conductivity and structural stability exhibit fascinating electrochemical performance.

Topological semimetal porous carbon as a high-performance anode for Li-ion batteries

2019 ◽  
Vol 7 (23) ◽  
pp. 14253-14259 ◽  
Author(s):  
Huanhuan Xie ◽  
Yu Qie ◽  
Muhammad Imran ◽  
Qiang Sun
Keyword(s):  
Lithium Ion Battery ◽  
Porous Carbon ◽  
High Performance ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
High Electronic Conductivity ◽  
Topological Semimetal ◽  
Li Ion ◽  
Battery Anode

Motivated by the advantages of inherent high electronic conductivity and ordered porosity of topological semimetal monoclinic C16 (m-C16), we explore its possible use as a lithium-ion battery anode material.

scholarly journals High-Performance Lithium Sulfur Batteries Based on Multidimensional Graphene-CNT-Nanosulfur Hybrid Cathodes

Batteries ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 26
Author(s):  
Álvaro Doñoro ◽  
Álvaro Muñoz-Mauricio ◽  
Vinodkumar Etacheri
Keyword(s):  
High Performance ◽  
Coulombic Efficiency ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Synthesis Method ◽  
Graphene Nanoplatelets ◽  
Practical Implementation ◽  
Electrochemical Performances ◽  
High Electronic Conductivity ◽  
Lithium Sulfur

Although lithium-sulfur (Li-S) batteries are one of the promising candidates for next-generation energy storage, their practical implementation is limited by rapid capacity fading due to lithium polysulfide (LiPSs) formation and the low electronic conductivity of sulfur. Herein, we report a high-performance lithium-sulfur battery based on multidimensional cathode architecture consisting of nanosulfur, graphene nanoplatelets (2D) and multiwalled carbon nanotubes (1D). The ultrasonic synthesis method results in the generation of sulfur nanoparticles and their intercalation into the multilayered graphene nanoplatelets. The optimized multidimensional graphene-sulfur-CNT hybrid cathode (GNS58-CNT10) demonstrated a high specific capacity (1067 mAh g−1 @ 50 mA g−1), rate performance (539 @ 1 A g−1), coulombic efficiency (~95%) and cycling stability (726 mAh g−1 after 100 cycles @ 200 mA g−1) compared to the reference cathode. Superior electrochemical performances are credited to the encapsulation of nanosulfur between the individual layers of graphene nanoplatelets with high electronic conductivity, and effective polysulfide trapping by MWCNT bundles.

scholarly journals Carbon-Coated Three-Dimensional MXene/Iron Selenide Ball with Core–Shell Structure for High-Performance Potassium-Ion Batteries

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Su Hyun Yang ◽  
Yun Jae Lee ◽  
Heemin Kang ◽  
Seung-Keun Park ◽  
Yun Chan Kang
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Current Density ◽  
Electronic Conductivity ◽  
Three Dimensional ◽  
Ultrasonic Spray Pyrolysis ◽  
Reversible Capacity ◽  
Potassium Ion ◽  
Synthetic Strategy ◽  
High Electronic Conductivity

AbstractTwo-dimensional (2D) MXenes are promising as electrode materials for energy storage, owing to their high electronic conductivity and low diffusion barrier. Unfortunately, similar to most 2D materials, MXene nanosheets easily restack during the electrode preparation, which degrades the electrochemical performance of MXene-based materials. A novel synthetic strategy is proposed for converting MXene into restacking-inhibited three-dimensional (3D) balls coated with iron selenides and carbon. This strategy involves the preparation of Fe2O3@carbon/MXene microspheres via a facile ultrasonic spray pyrolysis and subsequent selenization process. Such 3D structuring effectively prevents interlayer restacking, increases the surface area, and accelerates ion transport, while maintaining the attractive properties of MXene. Furthermore, combining iron selenides and carbon with 3D MXene balls offers many more sites for ion storage and enhances the structural robustness of the composite balls. The resultant 3D structured microspheres exhibit a high reversible capacity of 410 mAh g−1 after 200 cycles at 0.1 A g−1 in potassium-ion batteries, corresponding to the capacity retention of 97% as calculated based on 100 cycles. Even at a high current density of 5.0 A g−1, the composite exhibits a discharge capacity of 169 mAh g−1.

Lithium titanate anode for high-performance lithium-ion batteries using octadecylamine and folic acid-functionalized graphene oxide for fabrication of ultrathin lithium titanate nanoflakes and modification of binder

2018 ◽  
Vol 42 (18) ◽  
pp. 15097-15104 ◽  
Author(s):  
Li Youjie ◽  
Ruiyi Li ◽  
Yongqiang Yang ◽  
Zaijun Li
Keyword(s):  
Graphene Oxide ◽  
Folic Acid ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Structural Stability ◽  
High Performance ◽  
Lithium Ion ◽  
Lithium Titanate ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

Functionalized graphene oxide creates significant improvement in electrochemical performance of lithium titanate anode due to high conductivity and structural stability.

A graphene-like metallic cathode host for long-life and high-loading lithium–sulfur batteries

2016 ◽  
Vol 3 (2) ◽  
pp. 130-136 ◽  
Author(s):  
Quan Pang ◽  
Dipan Kundu ◽  
Linda F. Nazar
Keyword(s):  
High Performance ◽  
Electronic Conductivity ◽  
High Loading ◽  
Host Materials ◽  
High Electronic Conductivity ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Long Life ◽  
Lithium Sulfur

Nanostructured sulfur host materials that embrace both high electronic conductivity and strong chemisorption towards polysulfides are central to enable high performance Li–S batteries.

A Comparison of Electrochemical Performance of Double Perovskite REBaCo2O5+x Cathodes in Symmetrical Solid Oxide Fuel Cells

2008 ◽  
Vol 1126 ◽  
Author(s):  
Wenquan Gong ◽  
Manoj Yadav ◽  
Allan J. Jacobson
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Electronic Conductivity ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Surface Exchange ◽  
Defect Sites ◽  
Composite Cathodes ◽  
High Electronic Conductivity

AbstractThe segregated vacancies in the A site-ordered oxygen-deficient double perovskites REBaCo2O5+x (RE = La, Pr, Nd, Sm, Eu) (RBCO) are thought to greatly enhance the diffusivity of oxide ions in the bulk of these materials and possibly supply surface defect sites with enhanced reactivity towards molecular oxygen. Some materials in this family of REBaCo2O5+x compounds, such as PrBaCo2O5+x, (PBCO), have already demonstrated high electronic conductivity, rapid oxygen ion diffusion and surface exchange kinetics. Therefore, the family of REBaCo2O5+x compounds were synthesized and evaluated as cathode materials for intermediate temperature solid oxide fuel cells (SOFCs) based on gadolinium doped ceria (CGO) electrolytes. The electrochemical performance of symmetrical cells (REBaCo2O5+x + CGO composite cathodes on the CGO electrolytes) was evaluated by using AC impedance spectroscopy. The area specific resistance (ASR) performance was measured as a function of temperature as well as oxygen partial pressure.

scholarly journals Polyethylene Oxide as a Multifunctional Binder for High-Performance Ternary Layered Cathodes

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3992
Author(s):  
Jinshan Mo ◽  
Dongmei Zhang ◽  
Mingzhe Sun ◽  
Lehao Liu ◽  
Weihao Hu ◽  
...  
Keyword(s):  
Polyethylene Oxide ◽  
Cathode Materials ◽  
High Performance ◽  
Electrochemical Impedance ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Rate Performance ◽  
High Electronic Conductivity

Nickel cobalt manganese ternary cathode materials are some of the most promising cathode materials in lithium-ion batteries, due to their high specific capacity, low cost, etc. However, they do have a few disadvantages, such as an unstable cycle performance and a poor rate performance. In this work, polyethylene oxide (PEO) with high ionic conductance and flexibility was utilized as a multifunctional binder to improve the electrochemical performance of LiNi0.6Co0.2Mn0.2O2 cathode materials. Scanning electron microscopy showed that the addition of PEO can greatly improve the adhesion of the electrode components and simultaneously enhance the integrity of the electrode. Thus, the PEO-based electrode (20 wt% PEO in PEO/PVDF) shows a high electronic conductivity of 19.8 S/cm, which is around 15,000 times that of the pristine PVDF-based electrode. Moreover, the PEO-based electrode exhibits better cycling stability and rate performance, i.e., the capacity increases from 131.1 mAh/g to 147.3 mAh/g at 2 C with 20 wt% PEO addition. Electrochemical impedance measurements further indicate that the addition of the PEO binder can reduce the electrode resistance and protect the LiNi0.6Co0.2Mn0.2O2 cathode materials from the liquid electrolyte attack. This work offers a simple yet effective method to improve the cycling performance of the ternary cathode materials by adding an appropriate amount of PEO as a binder in the electrode fabrication process.

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