Preparation and Optimization of New High-Power Nanoscale Li4Ti5O12 Full-Cell System

2018 ◽  
Vol 18 (12) ◽  
pp. 8232-8239 ◽  
Author(s):  
Zhao Fang ◽  
Jiaxin Peng ◽  
Nani Ma ◽  
Lisi Liang ◽  
Hongquan Gao ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Cathode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
Cell System ◽  
Full Cell ◽  
Higher Power ◽  
Negative Electrodes ◽  
New Type

Lithium ion batteries with graphite negative electrodes have been developed to date due to their low power density, which limits their application in many cases, however. Nanoscale Li4Ti5O12 has higher power density than conventional graphite anode materials. In order to ensure that the full-cell system has high power and high energy, cathode materials are very important. In this paper, three different cathode materials, LiNi0.8Co0.15Al0.05O2 (NCA), LiNi0.6Co0.2Mn0.2O2 (NCM622), and LiCoO2 (LCO), were used to conduct a comprehensive study, and optimal NCA-Li4Ti5O12(LTO) full battery system was selected under high power conditions. On the basis, in order to further increase battery power density, and in combination with the mechanism of the supercapacitor non-Faradic energy storage, polyaniline activated carbon material (PANI-AC) with excellent capacitance characteristics was prepared. In the end, we proposed a new type of hybrid battery capacitor system with high power and high energy.

scholarly journals Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Artificial Graphite

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

scholarly journals Novel Lithium-Ion Capacitor Based on a NiO-rGO Composite

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3586
Author(s):  
Qi An ◽  
Xingru Zhao ◽  
Shuangfu Suo ◽  
Yuzhu Bai
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Cycle Life ◽  
High Energy Density ◽  
Lithium Ion Capacitor

Lithium-ion capacitors (LICs) have been widely explored for energy storage. Nevertheless, achieving good energy density, satisfactory power density, and stable cycle life is still challenging. For this study, we fabricated a novel LIC with a NiO-rGO composite as a negative material and commercial activated carbon (AC) as a positive material for energy storage. The NiO-rGO//AC system utilizes NiO nanoparticles uniformly distributed in rGO to achieve a high specific capacity (with a current density of 0.5 A g−1 and a charge capacity of 945.8 mA h g−1) and uses AC to provide a large specific surface area and adjustable pore structure, thereby achieving excellent electrochemical performance. In detail, the NiO-rGO//AC system (with a mass ratio of 1:3) can achieve a high energy density (98.15 W h kg−1), a high power density (10.94 kW kg−1), and a long cycle life (with 72.1% capacity retention after 10,000 cycles). This study outlines a new option for the manufacture of LIC devices that feature both high energy and high power densities.

scholarly journals A mechanistic study of mesoporous TiO2 nanoparticle negative electrode materials with varying crystallinity for lithium ion batteries

2020 ◽  
Vol 8 (6) ◽  
pp. 3333-3343 ◽  
Author(s):  
Changjian Deng ◽  
Miu Lun Lau ◽  
Chunrong Ma ◽  
Paige Skinner ◽  
Yuzi Liu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Power Density ◽  
Electrode Materials ◽  
Negative Electrode ◽  
Lithium Ion ◽  
High Energy ◽  
Mesoporous Tio2 ◽  
Mechanistic Study ◽  
Negative Electrodes ◽  
Negative Electrode Materials

Nanoscale oxide-based negative electrodes are of great interest for lithium ion batteries due to their high energy/power density, and enhanced safety. The crystallinity effect of mesoporous TiO2 nanoparticle electrode was investigated in this work.

Germanium Oxide Negative Electrodes - Tuning Synthesis Conditions Towards High-Energy and High-Power Lithium-Ion Cells

2020 ◽  
Vol MA2020-02 (2) ◽  
pp. 249-249
Author(s):  
Tobias Eisenmann ◽  
Ha-gyeong Baek ◽  
Angelo Mullaliu ◽  
Stefano Passerini ◽  
Dominic Bresser
Keyword(s):  
High Power ◽  
Lithium Ion ◽  
High Energy ◽  
Germanium Oxide ◽  
Synthesis Conditions ◽  
Lithium Ion Cells ◽  
Negative Electrodes

Recent progress in advanced electrode materials, separators and electrolytes for lithium batteries

2018 ◽  
Vol 6 (42) ◽  
pp. 20564-20620 ◽  
Author(s):  
Hailin Zhang ◽  
Hongbin Zhao ◽  
Muhammad Arif Khan ◽  
Wenwen Zou ◽  
Jiaqiang Xu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Power Density ◽  
Lithium Batteries ◽  
Recent Progress ◽  
Electrode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
Cycle Life ◽  
Long Cycle Life ◽  
Negative Electrodes

This article comprehensively reviews the recent progress in the development of key components of lithium-ion batteries, including positive/negative electrodes, electrolytes and separators. The necessity of developing batteries with high energy/power density and long cycle-life is emphasized both in terms of industrial and academic perspectives.

scholarly journals Blow-spun N-doped carbon fiber based high performance flexible lithium ion capacitors

RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 9833-9839
Author(s):  
Changzhen Zhan ◽  
Jianan Song ◽  
Xiaolong Ren ◽  
Yang Shen ◽  
Hui Wu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Hybrid Supercapacitors

Constructing flexible hybrid supercapacitors is a feasible way to achieve devices with high energy density, high power density and flexibility at the same time.

Carbonate coprecipitation preparation of Li-rich layered oxides using the oxalate anion ligand as high-energy, high-power and durable cathode materials for lithium-ion batteries

2015 ◽  
Vol 3 (42) ◽  
pp. 21219-21226 ◽  
Author(s):  
Long Xu ◽  
Peiyu Hou ◽  
Yantao Zhang ◽  
Hongzhou Zhang ◽  
Dawei Song ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Power ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Layered Oxides ◽  
Oxalate Anion ◽  
Highly Efficient

A green, highly efficient and low cost ligand oxalate anion is successfully introduced to prepare spherical precursors for high-energy, high-power and durable cathode materials.

High power lithium-ion battery based on a LiMn2O4 nanorod cathode and a carbon-coated Li4Ti5O12 nanowire anode

RSC Advances ◽  
2016 ◽  
Vol 6 (109) ◽  
pp. 107355-107363 ◽  
Author(s):  
Xiuli Su ◽  
Jingyuan Liu ◽  
Congcong Zhang ◽  
Tao Huang ◽  
Yonggang Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Battery ◽  
High Power ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Power Performance ◽  
Full Cell ◽  
Carbon Coated ◽  
Long Life

LiMn2O4 nanorods and carbon-coated Li4Ti5O12 nanowires were used to build a full cell that exhibits supercapacitor-like power performance, long life and high energy density.

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