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Mesoporous germanium nanoparticles synthesized in molten zinc chloride at low temperature as a high-performance anode for lithium-ion batteries. Investigated as anode materials for lithium-ion batteries, mesoporous germanium nanoparticles exhibit a high capacity retention, high rate capacity and high energy retention. Expand.
A novel nanostructured Ge-PPy composite has been successfully fabricated by a simple chemical reduction method and demonstrated to be a promising anode material for lithium-ion batteries.
In fact, how to increase the energy density of flexible energy storage device is a huge challenge. To solve the above challenges, two main ways are used to develop the high-performance flexible batteries with both high energy- and power-density.
Here we investigate the electrochemical cycling of germanium nanowire (Ge NW) composite alloying electrodes with controlled surface chemistry, operating in the
Germanium, a promising electrode material for high-capacity lithium ion batteries (LIBs) anodes, attracted much attention because of its large capacity and remarkably fast charge/discharge kinetics. Multivalent-ion batteries are of interest as potential alternatives to LIBs because they have a higher energy density and are less
Germanium-based nanomaterials have emerged as important candidates for next-generation energy-storage devices owing to their unique chemical and physical
Germanium (Ge) is a promising anode material for lithium ion batteries due to its high theoretical capacity. However, its poor cycling stability associated with its
Germanium-based materials with extremely high theoretical energy capacities have gained a lot of attention recently as potential anodes for lithium ion
The high-energy lithium ion battery is an ideal power source for electric vehicles and grid-scale energy storage applications. Germanium is a promising anode material for lithium ion batteries due to its high specific capacity, but still suffers from poor cyclability. Here, we report a facile preparation of a germanium–graphene
@article{Mo2020HierarchicalGM, title={Hierarchical graphene-scaffolded mesoporous germanium dioxide nanostructure for high-performance flexible lithium-ion batteries}, author={Runwei Mo and David W. Rooney and Kening Sun}, journal={Energy Storage,,
Solid state reactions were used to synthesize pure and Sc-Ge co-doped NASICON using Na 2 CO 3, SiO 2, ZrO 2, (NH 4) 2 HPO 4, Sc 2 O 3 and GeO 2 as starting materials. First, 10% excess Na 2 CO 3 and stoichiometric amounts of other starting materials were mixed by ball-milling at 400 rpm for 12 h in 2-propanol.
Developing a simple, cheap, and scalable synthetic method for the fabrication of functional nanomaterials is crucial. Carbon-based nanowire nanocomposites could play a key role in integrating group IV semiconducting nanomaterials as anodes into Li-ion batteries. Here, we report a very simple, one-pot solvothermal-like growth of
With the development of consumer electronics and electric vehicles, high-energy-density lithium batteries have attracted extensive attention. Lithium-ion batteries using graphite anode materials have reached the theoretical specific capacity limit (372 mAh g −1), and developing high-capacity anode materials has become a key challenge in
Germanium (Ge) is a promising anode material for lithium ion batteries due to its high theoretical capacity. However, its poor cycling stability associated with its large volume changes during discharging and charging processes are urgent problems to solve. This provides opportunities to engineer materials to overcome these issues. Here,
1. Introduction The lithium-ion battery (LIB) is an essential secondary battery system for portable electronic devices, electric vehicles (EVs), hybrid EVs, and energy storage system thanks to its high energy density and output voltage [[1], [2], [3]] cause of limited
Binder-free nanostructured germanium anode for lithium-ion batteries. Capacity retention of 95% after 1600 cycles at 1C. Specific capacity of 1060 mAh g −1 at 10C and 450 mAh g −1 at 60C. Tested from -30 °C to +60 °C. Realized by means of a two-step process, easily scalable for industrial applications.
It is worth noting that the lithiated germanium-sulfur battery display a high specific capacity of 586 mA h g −1 and energy density of 1025 W h kg −1 at 0.8 A g −1, outstanding rate performance (>400 mA h g −1 under
Lithium-sulfur batteries are very promising due to low cost and high energy density compared to the current commercial lithium-ion batteries. However, when the anode is selected from lithium metal, it exhibits strong chemical activity since the electrolyte using an organic system and is liable to form lithium dendrites, leading to short lifespan and
In this Review, we provide a review of the current state-of-the-art in germanium-based materials design, synthesis, processing, and application in battery
1. Introduction Recently, silicon (Si), germanium (Ge) and tin (Sn) are recognised as high performance lithium-ion battery (LIB) anodes due to their much higher theoretical capacities of 4200,1600 and 990 mAh g −1, respectively [1, 2].Although Si is demonstrated as
Hollow germanium nanocrystals on reduced graphene oxide for superior stable lithium-ion half cell and germanium (lithiated)-sulfur battery Energy Storage Materials, Volume 26, 2020, pp. 414-422 Runwei Mo, , Kening Sun
Triggered by increasing and urgent demands for electrical portable devices and hybrid electric vehicles, tremendous efforts had been devoted to research on energy storage systems with high energy and
Mesoporous germanium materials were synthesized via the self-templating method. When used as the anode for lithium ion batteries, the mesoporous germanium exhibits excellent cycling stability with a high reversible specific capacity (803 mA h g−1) within 100 cycles at 0.5 C rate, in addition to improved rate performance (655
photo‐rechargeable electronic energy storage device has become a new type of solution to the problems of The solar energy to battery charge conversion efficiency reached 14.5%, including a
Germanium-based nanomaterials have emerged as important candidates for next-generation energy-storage devices owing to their unique chemical and physical
Solid-state lithium batteries are considered promising energy storage devices due to their superior safety and higher energy density than conventional liquid electrolyte-based
Prior to joining SDU, Dr. Feng worked on the development of novel materials for energy storage as a Postdoc at Department of Mechanical Engineering at the Pennsylvania State University. He also conducted research on solid state batteries as a research fellow at National University of Singapore between 2008 and 2011.
Pandres E. P. et al. Germanium Nanowire Battery Electrodes with Engineered Surface-Binder Interactions Exhibit Improved Cycle Life and High Energy Density without Fluorinated Additives // ACS Applied Energy Materials. 2019. Vol. 2. No. 9. pp. 6200-6208.
The development and the characterization of a nanostructured binder-free anode for lithium-ion batteries exploiting the germanium high theoretical specific
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