scholarly journals Enhanced Roles of Carbon Architectures in High-Performance Lithium-Ion Batteries

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Lu Wang ◽  
Junwei Han ◽  
Debin Kong ◽  
Ying Tao ◽  
Quan-Hong Yang
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Mass

Abstract Lithium-ion batteries (LIBs), which are high-energy-density and low-safety-risk secondary batteries, are underpinned to the rise in electrochemical energy storage devices that satisfy the urgent demands of the global energy storage market. With the aim of achieving high energy density and fast-charging performance, the exploitation of simple and low-cost approaches for the production of high capacity, high density, high mass loading, and kinetically ion-accessible electrodes that maximize charge storage and transport in LIBs, is a critical need. Toward the construction of high-performance electrodes, carbons are promisingly used in the enhanced roles of active materials, electrochemical reaction frameworks for high-capacity noncarbons, and lightweight current collectors. Here, we review recent advances in the carbon engineering of electrodes for excellent electrochemical performance and structural stability, which is enabled by assembled carbon architectures that guarantee sufficient charge delivery and volume fluctuation buffering inside the electrode during cycling. Some specific feasible assembly methods, synergism between structural design components of carbon assemblies, and electrochemical performance enhancement are highlighted. The precise design of carbon cages by the assembly of graphene units is potentially useful for the controlled preparation of high-capacity carbon-caged noncarbon anodes with volumetric capacities over 2100 mAh cm−3. Finally, insights are given on the prospects and challenges for designing carbon architectures for practical LIBs that simultaneously provide high energy densities (both gravimetric and volumetric) and high rate performance.

scholarly journals Facile Synthesis of FeS@C Particles Toward High-Performance Anodes for Lithium-Ion Batteries

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1467
Author(s):  
Xuanni Lin ◽  
Zhuoyi Yang ◽  
Anru Guo ◽  
Dong Liu
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Current Density ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Hierarchical Porous

High energy density batteries with high performance are significantly important for intelligent electrical vehicular systems. Iron sulfurs are recognized as one of the most promising anodes for high energy density lithium-ion batteries because of their high theoretical specific capacity and relatively stable electrochemical performance. However, their large-scale commercialized application for lithium-ion batteries are plagued by high-cost and complicated preparation methods. Here, we report a simple and cost-effective method for the scalable synthesis of nanoconfined FeS in porous carbon (defined as FeS@C) as anodes by direct pyrolysis of an iron(III) p-toluenesulfonate precursor. The carbon architecture embedded with FeS nanoparticles provides a rapid electron transport property, and its hierarchical porous structure effectively enhances the ion transport rate, thereby leading to a good electrochemical performance. The resultant FeS@C anodes exhibit high reversible capacity and long cycle life up to 500 cycles at high current density. This work provides a simple strategy for the mass production of FeS@C particles, which represents a critical step forward toward practical applications of iron sulfurs anodes.

scholarly journals NiCo2S4 Nanocrystals on Nitrogen-Doped Carbon Nanotubes as High-Performance Anode for Lithium-Ion Batteries

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Haisheng Han ◽  
Yanli Song ◽  
Yongguang Zhang ◽  
Gulnur Kalimuldina ◽  
Zhumabay Bakenov
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Bimetallic Sulfide

AbstractIn recent years, the development of lithium-ion batteries (LIBs) with high energy density has become one of the important research directions to fulfill the needs of electric vehicles and smart grid technologies. Nowadays, traditional LIBs have reached their limits in terms of capacity, cycle life, and stability, necessitating their further improvement and development of alternative materials with remarkably enhanced properties. A nitrogen-containing carbon nanotube (N-CNT) host for bimetallic sulfide (NiCo2S4) is proposed in this study as an anode with attractive electrochemical performance for LIBs. The prepared NiCo2S4/N-CNT nanocomposite exhibited improved cycling stability, rate performance, and an excellent reversible capacity of 623.0 mAh g–1 after 100 cycles at 0.1 A g–1 and maintained a high capacity and cycling stability at 0.5 A g–1. The excellent electrochemical performance of the composite can be attributed to the unique porous structure, which can effectively enhance the diffusivity of Li ions while mitigating the volume expansion during the charge–discharge processes.

Chemical Switch Enabled Autonomous Two-Stage Crosslinking Polymeric Binder for High Performance Silicon Anodes

2021 ◽  
Author(s):  
Zhangxing Shi ◽  
Qian Liu ◽  
Zhenzhen Yang ◽  
Lily A Robertson ◽  
Sambasiva R. Bheemireddy ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Polymeric Binder ◽  
Silicon Anodes ◽  
Si Anodes

Silicon (Si) is a promising high-capacity anode material for high-energy-density lithium-ion batteries. However, the drastic volumetric changes of Si upon lithiation/delithiation hinder the practical use of Si anodes. Although adhesive...

scholarly journals A review of composite solid-state electrolytes for lithium batteries: fundamentals, key materials and advanced structures

2020 ◽  
Vol 49 (23) ◽  
pp. 8790-8839
Author(s):  
Yun Zheng ◽  
Yuze Yao ◽  
Jiahua Ou ◽  
Matthew Li ◽  
Dan Luo ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Next Generation ◽  
Composite Solid

All-solid-state lithium ion batteries (ASSLBs) are considered next-generation devices for energy storage due to their advantages in safety and potentially high energy density.

Human joint inspired structural design for bendable/foldable/stretchable/twistable battery: achieving multiple deformability

2021 ◽  
Author(s):  
Ao Chen ◽  
Xun Guo ◽  
Shuo Yang ◽  
Guojin Liang ◽  
Qing Li ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Structural Design ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Wearable Electronics ◽  
Bending Angle ◽  
Human Joint

Flexible lithium ion batteries (LIBs) with high energy density and stable electrochemical performance are regarded as the most promising power for supplying the wearable electronics. Simultaneously achieving small bending angle,...

scholarly journals Research Progress of Silicon Suboxide-Based Anodes for Lithium-Ion Batteries

2021 ◽  
Vol 7 ◽  
Author(s):  
Xiaozhong Zhou ◽  
Zhaoyi Qi ◽  
Qiang Liu ◽  
Jibin Tian ◽  
Mingxia Liu ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Mass ◽  
Research Progress ◽  
Future Application ◽  
Environmental Friendliness ◽  
Silicon Suboxide

With unique advantages, such as high energy density, long lifespan and environmental friendliness, lithium-ion batteries (LIBs) have been widely used in various portable electronics, and placed great expectations on the application in electric vehicles. To meet the ever-increasing high-energy-density demand of the next-generation LIBs, silicon suboxide SiOx(0 < x < 2) has been considered as one of the most promising anode materials, due to its high mass specific capacity, good cycling performance, proper working potential, low cost, and environmental friendliness. However, there are still several drawbacks before the application of SiOx, such as low intrinsic electronic conductivity and high irreversible capacity in the first cycle, which lead to low electrochemical activity and low initial coulombic efficiency (ICE). To tackle these issues, extensive efforts have been made and remarkable progresses have achieved in recent years. Here, latest developments of SiOx-based anodes are briefly reviewed, especially on the subject of metal/metal oxide doping on SiOx-based electrode materials, and the future application of SiOx anodes in rechargeable LIBs is also prospected.

scholarly journals Porous Co2VO4 Nanodisk as a High-Energy and Fast-Charging Anode for Lithium-Ion Batteries

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Jinghui Ren ◽  
Zhenyu Wang ◽  
Peng Xu ◽  
Cong Wang ◽  
Fei Gao ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
High Capacity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Energy ◽  
High Specific Surface Area ◽  
High Energy Density ◽  
Safety Issues ◽  
Fast Charging

AbstractHigh-energy–density lithium-ion batteries (LIBs) that can be safely fast-charged are desirable for electric vehicles. However, sub-optimal lithiation potential and low capacity of commonly used LIBs anode cause safety issues and low energy density. Here we hypothesize that a cobalt vanadate oxide, Co2VO4, can be attractive anode material for fast-charging LIBs due to its high capacity (~ 1000 mAh g−1) and safe lithiation potential (~ 0.65 V vs. Li+/Li). The Li+ diffusion coefficient of Co2VO4 is evaluated by theoretical calculation to be as high as 3.15 × 10–10 cm2 s−1, proving Co2VO4 a promising anode in fast-charging LIBs. A hexagonal porous Co2VO4 nanodisk (PCVO ND) structure is designed accordingly, featuring a high specific surface area of 74.57 m2 g−1 and numerous pores with a pore size of 14 nm. This unique structure succeeds in enhancing Li+ and electron transfer, leading to superior fast-charging performance than current commercial anodes. As a result, the PCVO ND shows a high initial reversible capacity of 911.0 mAh g−1 at 0.4 C, excellent fast-charging capacity (344.3 mAh g−1 at 10 C for 1000 cycles), outstanding long-term cycling stability (only 0.024% capacity loss per cycle at 10 C for 1000 cycles), confirming the commercial feasibility of PCVO ND in fast-charging LIBs.

Improved electrochemical performance of anode materials for high energy density lithium-ion batteries through Sn(SnO2)–SiO2/graphene-based nanocomposites prepared by a facile and low-cost approach

2020 ◽  
Vol 4 (9) ◽  
pp. 4625-4636
Author(s):  
Orapim Namsar ◽  
Thanaphat Autthawong ◽  
Viratchara Laokawee ◽  
Ruttapol Boonprachai ◽  
Mitsutaka Haruta ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Cost Approach

Novel anode materials for lithium-ion batteries, nanocomposites of Sn (or SnO2) and SiO2 with graphene-based sheets (GO, rGO and NrGO), were synthesized by a facile and low-cost technique. The capacity of all composites was relatively high as compared to traditional graphite.

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