Origami of Solid-State Supercapacitive Microjunctions Operable at 3 V with High Specific Energy Density for Wearable Electronics

2020 ◽  
Vol 2 (3) ◽  
pp. 659-669
Author(s):  
Mihir Kumar Jha ◽  
Tanya Jain ◽  
Chandramouli Subramaniam
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Specific Energy ◽  
Wearable Electronics ◽  
Specific Energy Density ◽  
High Specific Energy

Recent advances in the sulfide electrolytes toward high specific energy solid-state lithium batteries

2021 ◽  
Author(s):  
Tao Yu ◽  
Bingyu Ke ◽  
Haoyu Li ◽  
Shaohua Guo ◽  
Haoshen Zhou
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Specific Energy ◽  
Lithium Batteries ◽  
Lithium Ion ◽  
Liquid Lithium ◽  
Specific Energy Density ◽  
Solid State Batteries ◽  
All Solid State Batteries ◽  
High Specific Energy

All solid-state batteries (ASSBs) have gained extensive attention due to the improved safety, and high specific energy density compared with conventional liquid lithium-ion batteries. As the key component of ASSBs,...

High Specific Energy Density Aqueous Lithium-Metal Chloride Rechargeable Batteries

2017 ◽  
Vol 164 (9) ◽  
pp. A1958-A1964 ◽  
Author(s):  
Yoshinori Morita ◽  
Shinya Watanabe ◽  
Peng Zhang ◽  
Hui Wang ◽  
Daisuke Mori ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Energy ◽  
Rechargeable Batteries ◽  
Metal Chloride ◽  
Lithium Metal ◽  
Specific Energy Density ◽  
High Specific Energy

Bromide-acetate co-mediated high power density rechargeable aqueous zinc-manganese dioxide batteries

2021 ◽  
Author(s):  
Jing Wu ◽  
Yining Li ◽  
jiaqi Huang ◽  
Xiaowei Chi ◽  
Jianhua Yang ◽  
...  
Keyword(s):  
Energy Density ◽  
Manganese Dioxide ◽  
Specific Energy ◽  
High Power ◽  
Low Cost ◽  
High Power Density ◽  
Environmental Friendliness ◽  
The Poor ◽  
Specific Energy Density ◽  
High Specific Energy

Nowadays, aqueous rechargeable Zn/MnO2 battery is attracting great attention due to its advantages of low cost, high specific energy density and environmental friendliness. However, the poor conductivity and low utilization...

An Effective Sulfur Conversion Catalyst based on MnCo2O4.5 Modified Graphitized Carbon Nitride Nanosheet for High-Performance Li-S batteries

2021 ◽  
Author(s):  
Wenhao Sun ◽  
Yi-Chun Lu ◽  
Yaqin Huang
Keyword(s):  
Energy Density ◽  
Specific Energy ◽  
High Performance ◽  
Carbon Nitride ◽  
Low Cost ◽  
Graphitized Carbon ◽  
Specific Energy Density ◽  
Practical Development ◽  
Conversion Catalyst ◽  
Lithium Sulfur

Lithium-sulfur (Li-S) batteries promise high theoretical specific energy density (2600 Wh kg-1), low cost and eco-friendliness. However, their practical development is limited by the shuttle of lithium polysulfides (LiPSs) and...

Aqueous Na-ion capacitor with CuS graphene composite in symmetric and asymmetric configurations

2021 ◽  
Vol 45 (37) ◽  
pp. 17592-17602
Author(s):  
Manoj Goswami ◽  
Mattath Athika ◽  
Satendra Kumar ◽  
Perumal Elumalai ◽  
Netrapal Singh ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
Specific Energy ◽  
Specific Power ◽  
Graphene Composite ◽  
Specific Energy Density ◽  
Specific Power Density

The symmetric device shows a maximum specific energy density of 30 W h kg−1 at a specific power density of 380 W kg−1, which was reduced to 4 W h kg−1 at a highest specific power density of 4224 W kg−1.

scholarly journals High Performance Graphene-Based Electrochemical Double Layer Capacitors Using 1-Butyl-1-methylpyrrolidinium tris (pentafluoroethyl) trifluorophosphate Ionic Liquid as an Electrolyte

Electronics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 229 ◽  
Author(s):  
Jacob D. Huffstutler ◽  
Milinda Wasala ◽  
Julianna Richie ◽  
John Barron ◽  
Andrew Winchester ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Energy Density ◽  
Double Layer ◽  
Specific Energy ◽  
High Energy ◽  
High Energy Density ◽  
Electrochemical Double Layer Capacitors ◽  
Electrochemical Double Layer ◽  
High Specific Energy ◽  
Double Layer Capacitors

There are several advantages to developing electrochemical double-layer capacitors (EDLC) or supercapacitors with high specific energy densities, for example, these can be used in applications related to quality power generation, voltage stabilization, and frequency regulation. In this regard, ionic liquids capable of providing a higher voltage window of operations compared to an aqueous and/or polymer electrolyte can significantly enhance the specific energy densities of EDLCs. Here we demonstrate that EDLCs fabricated using ionic liquid 1-butyl-1-methylpyrrolidinium tris (pentafluoroethyl) trifluorophosphate (BMP-FAP) as an electrolyte and few layer liquid-phase exfoliated graphene as electrodes show remarkable performance compared to EDLC devices fabricated with aqueous potassium hydroxide (6M) as well as widely used ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6). We found that graphene EDLC’s with BMP-FAP as an electrolyte possess a high specific energy density of ≈25 Wh/kg along with specific capacitance values as high as 200 F/g and having an operating voltage windows of >5 volts with a rapid charge transfer response. These findings strongly indicate the suitability of BMP-FAP as a good choice of electrolyte for high energy density EDLC devices.

scholarly journals Optimization for maximum specific energy density of a lithium-ion battery using progressive quadratic response surface method and design of experiments

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ji-San Kim ◽  
Dong-Chan Lee ◽  
Jeong-Joo Lee ◽  
Chang-Wan Kim
Keyword(s):  
Energy Density ◽  
Design Of Experiments ◽  
Response Surface ◽  
Specific Energy ◽  
Lithium Ion ◽  
Specific Energy Density ◽  
Surface Method ◽  
Quadratic Response Surface ◽  
Quadratic Response ◽  
Electrochemical Model

Abstract The demand for high-capacity lithium-ion batteries (LIB) in electric vehicles has increased. In this study, optimization to maximize the specific energy density of a cell is conducted using the LIB electrochemical model and sequential approximate optimization (SAO). First, the design of experiments is performed to analyze the sensitivity of design factors important to the specific energy density, such as electrode and separator thicknesses, porosity, and particle size. Then, the design variables of the cell are optimized for maximum specific energy density using the progressive quadratic response surface method (PQRSM), which is one of the SAO techniques. As a result of optimization, the thickness ratio of the electrode was optimized and the porosity was reduced to keep the specific energy density high, while still maintaining the specific power density performance. This led to an increase in the specific energy density of 56.8% and a reduction in the polarization phenomenon of 11.5%. The specific energy density effectively improved through minimum computation despite the nonlinearity of the electrochemical model in PQRSM optimization.

scholarly journals Diffusion & concentration effect of Li/Li+ to the efficiency of LIBs

2020 ◽  
Vol 10 (2) ◽  
pp. 5076-5084
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Specific Energy ◽  
Electrical Transport ◽  
Anode Materials ◽  
Lithium Ion ◽  
Current Collector ◽  
Free Standing ◽  
Specific Energy Density ◽  
Battery Design

In this work the concentration of Li/Li+ has applied for increasing the efficiency of Lithium ion batteries. Various numbers of lithium and lithium cations have been simulated as diffused atoms in graphite as anode materials. We have found the structure of (G// (h-BN) //G) can be to improve the voltage and electrical transport in anodic sheets-based LIBs. This system could also be assembled into free-standing electrodes without any binder or current collector, which will lead to increased specific energy density for the overall battery design. Therefore, the above modification of BN-G sheet and designing of this kind structure provide strategies for improving the performance of material based anodes in LIBs.

scholarly journals The Role of Areal Capacity in Determining Short Circuiting of Sulfide-Based Solid-State Batteries

2021 ◽  
Author(s):  
John Lewis ◽  
Chanhee Lee ◽  
Yuhgene Liu ◽  
Sang Yun Han ◽  
Dhruv Prakash ◽  
...  
Keyword(s):  
Solid State ◽  
Current Density ◽  
Specific Energy ◽  
Research Effort ◽  
Short Circuit ◽  
Lithium Ion ◽  
Solid State Batteries ◽  
Current Densities ◽  
High Specific Energy ◽  
Areal Capacity

Solid-state batteries (SSBs) with lithium metal anodes offer higher specific energy than conventional lithium-ion batteries, but they must utilize areal capacities >3 mAh cm-2 and cycle at current densities >3 mA cm-2 to achieve commercial viability. Substantial research effort has focused on increasing rate capabilities of SSBs by mitigating detrimental processes such as lithium filament penetration. Less attention has been paid to understanding how areal capacity impacts plating/stripping behavior, despite the importance of areal capacity for achieving high specific energy. Here, we investigate and quantify the relationships among areal capacity, current density, and plating/stripping stability using both symmetric and full-cell configurations with a sulfide solid-state electrolyte (Li6PS5Cl). We show that unstable deposition and short circuiting readily occur at rates much lower than the measured critical current density when a sufficient areal capacity is passed. A systematic study of continuous plating under different electrochemical conditions reveals average “threshold capacity” values at different current densities, beyond which short circuiting occurs. Cycling cells below this threshold capacity significantly enhances cell lifetime, enabling stable symmetric cell cycling at 2.2 mA cm-2 without short circuiting. Finally, we show that full cells also exhibit threshold capacity behavior, but they tend to short circuit at lower current densities and areal capacities. Our results quantify the effects of transferred capacity and demonstrate the importance of using realistic areal capacities in experiments to develop viable solid-state batteries.

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