Synthesis of the Se-HPCF composite via a liquid-solution route and its stable cycling performance in Li–Se batteries

2020 ◽  
Vol 49 (41) ◽  
pp. 14536-14542
Author(s):  
Xi Chen ◽  
Lihong Xu ◽  
Lingxing Zeng ◽  
Yiyi Wang ◽  
Shihan Zeng ◽  
...  
Keyword(s):  
Anode Material ◽  
Liquid Solution ◽  
Cycling Performance ◽  
High Rate ◽  
Solution Route ◽  
Calcination Treatment

The Se-HPCF composite was fabricated via a liquid-solution route followed by calcination treatment, and was used as a high-rate anode material for Li–Se batteries.

In situ hydrothermal synthesis of double-carbon enhanced novel cobalt germanium hydroxide composites as promising anode material for sodium ion batteries

2021 ◽  
Author(s):  
Ni Wen ◽  
Siyuan Chen ◽  
Jingjie Feng ◽  
Ke Zhang ◽  
Zhiyong Zhou ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Anode Material ◽  
Rate Capability ◽  
Cycling Performance ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
High Rate Capability

The double-carbon confined CGH@C/rGO composite is designed via a facile in situ hydrothermal strategy. When used as an anode for sodium-ion batteries, it exhibits superior reversible capacities, high rate capability, and stable cycling performance.

scholarly journals Synthesis and Characterization of Silicon Nanoparticles Inserted into Graphene Sheets as High Performance Anode Material for Lithium Ion Batteries

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yong Chen ◽  
Xuejun Zhang ◽  
Yanhong Tian ◽  
Xi Zhao
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Silicon Nanoparticles ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Thermal Reduction ◽  
High Rate ◽  
Graphene Sheets ◽  
Si Nanoparticles

Silicon nanoparticles have been successfully inserted into graphene sheets via a novel method combining freeze-drying and thermal reduction. The structure, electrochemical performance, and cycling stability of this anode material were characterized by SEM, X-ray diffraction (XRD), charge/discharge cycling, and cyclic voltammetry (CV). CV showed that the Si/graphene nanocomposite exhibits remarkably enhanced cycling performance and rate performance compared with bare Si nanoparticles for lithium ion batteries. XRD and SEM showed that silicon nanoparticles inserted into graphene sheets were homogeneous and had better layered structure than the bare silicon nanoparticles. Graphene sheets improved high rate discharge capacity and long cycle-life performance. The initial capacity of the Si nanoparticles/graphene keeps above 850 mAhg−1after 100 cycles at a rate of 100 mAg−1. The excellent cycle performances are caused by the good structure of the composites, which ensured uniform electronic conducting sheet and intensified the cohesion force of binder and collector, respectively.

scholarly journals Biomass-Derived Porous Carbon from Agar as an Anode Material for Lithium-Ion Batteries

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 22
Author(s):  
Nurbolat Issatayev ◽  
Gulnur Kalimuldina ◽  
Arailym Nurpeissova ◽  
Zhumabay Bakenov
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Activated Carbons ◽  
High Surface ◽  
High Surface Area ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
High Rate ◽  
One Step

New porous activated carbons with a high surface area as an anode material for lithium-ion batteries (LIBs) were synthesized by a one-step, sustainable, and environmentally friendly method. Four chemical activators—H2SO4, H3PO4, KOH, and ZnCl2—have been investigated as facilitators of the formation of the porous structure of activated carbon (AC) from an agar precursor. The study of the materials by Brunauer–Emmett–Teller (BET) and scanning electron microscopy (SEM) methods revealed its highly porous meso- and macro-structure. Among the used chemical activators, the AC prepared with the addition of KOH demonstrated the best electrochemical performance upon its reaction with lithium metal. The initial discharge capacity reached 931 mAh g−1 and a reversible capacity of 320 mAh g−1 was maintained over 100 cycles at 0.1 C. High rate cycling tests up to 10 C demonstrated stable cycling performance of the AC from agar.

Facile synthesis of a Co3V2O8interconnected hollow microsphere anode with superior high-rate capability for Li-ion batteries

2016 ◽  
Vol 4 (14) ◽  
pp. 5075-5080 ◽  
Author(s):  
Yanzhu Luo ◽  
Xu Xu ◽  
Xiaocong Tian ◽  
Qiulong Wei ◽  
Mengyu Yan ◽  
...  
Keyword(s):  
Anode Material ◽  
Rate Capability ◽  
Hollow Microsphere ◽  
Cycling Performance ◽  
Hollow Microspheres ◽  
High Rate ◽  
Li Ion Batteries ◽  
High Rate Capability ◽  
Facile Synthesis ◽  
Li Ion

Co3V2O8interconnected hollow microspheres exhibit a remarkable rate capability and cycling performance as a promising anode material for Li-ion batteries.

3D hierarchical porous ZnO/ZnCo2O4 nanosheets as high-rate anode material for lithium-ion batteries

2016 ◽  
Vol 4 (16) ◽  
pp. 6042-6047 ◽  
Author(s):  
Xiaohong Xu ◽  
Kangzhe Cao ◽  
Yijing Wang ◽  
Lifang Jiao
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Structural Stability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
High Rate ◽  
Hierarchical Porous

The superior cycling performance of the ZZCO nanosheet electrode benefits from the excellent structural stability.

Novel sodium/lithium-ion anode material based on ultrathin Na2Ti2O4(OH)2 nanosheet

Nanoscale ◽  
2015 ◽  
Vol 7 (35) ◽  
pp. 14618-14626 ◽  
Author(s):  
Yuping Zhang ◽  
Lin Guo ◽  
Shihe Yang
Keyword(s):  
Anode Material ◽  
Lithium Ion ◽  
Cycling Performance ◽  
High Rate ◽  
Ion Storage ◽  
Long Life

Excellent high rate Li/Na-ion storage capability with long-life cycling performance was delivered by ultrathin Na2Ti2O4(OH)2 nanosheets.

scholarly journals A cooperative biphasic MoOx–MoPx promoter enables a fast-charging lithium-ion battery

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sang-Min Lee ◽  
Junyoung Kim ◽  
Janghyuk Moon ◽  
Kyu-Nam Jung ◽  
Jong Hwa Kim ◽  
...  
Keyword(s):  
Anode Materials ◽  
Surface Engineering ◽  
Dominant Role ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Graphite Anode ◽  
Graphite Surface ◽  
High Rate ◽  
Fast Charging ◽  
Li Ion

AbstractThe realisation of fast-charging lithium-ion batteries with long cycle lifetimes is hindered by the uncontrollable plating of metallic Li on the graphite anode during high-rate charging. Here we report that surface engineering of graphite with a cooperative biphasic MoOx–MoPx promoter improves the charging rate and suppresses Li plating without compromising energy density. We design and synthesise MoOx–MoPx/graphite via controllable and scalable surface engineering, i.e., the deposition of a MoOx nanolayer on the graphite surface, followed by vapour-induced partial phase transformation of MoOx to MoPx. A variety of analytical studies combined with thermodynamic calculations demonstrate that MoOx effectively mitigates the formation of resistive films on the graphite surface, while MoPx hosts Li+ at relatively high potentials via a fast intercalation reaction and plays a dominant role in lowering the Li+ adsorption energy. The MoOx–MoPx/graphite anode exhibits a fast-charging capability (<10 min charging for 80% of the capacity) and stable cycling performance without any signs of Li plating over 300 cycles when coupled with a LiNi0.6Co0.2Mn0.2O2 cathode. Thus, the developed approach paves the way to the design of advanced anode materials for fast-charging Li-ion batteries.

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