(Data source: Web of Science, 23-April-2020). In addition to the high theoretical capacity, germanium-based materials have many other obvious advantages. 1) High lithium-ion diffusivity.
The capacity of 1100 mA h g −1 is maintained over 180 cycles at a current density of 0.1 A g −1. In germanium selenides, it is also found by ex-situ XRD and Raman spectroscopy characterization that the production and amorphization of cubic/ST12-phase Ge could boost its lithium storage capacity .
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.
It is believed that germanium-based anodes could meet the increasing requirements for batteries with high power and energy densities. The histogram of the number of publications reflects the increased interest in germanium-based anodes in general during the last decade (Fig. 1).
When germanium NPs are slurry-casted with polyacrylic acid (PAA) binder and co-solvent fluoroethylene carbonate (FEC) in the electrolyte, the battery performance is significantly improved. Its capacity could be as high as over 1000 mA h g−1 when discharging the electrode at up to 20 C .
With a layered structure, the energy barriers for the diffusion of alkali atoms on germanium sulfides are very low (0.236 eV for Li, 0.090 eV for Na and 0.050 eV for K), ensuring high charge/discharge rates. Puckered-layer-structured GeS was fabricated by high-energy ball-milling, exhibiting a good rate performance .
Progress and Perspectives of Lithium Aluminum Germanium …
Solid-state lithium batteries are considered promising energy storage devices due to their superior safety and higher energy density than conventional liquid electrolyte-based batteries. Lithium aluminum germanium phosphate (LAGP), with excellent stability in air and good ionic conductivity, has gained tremendous attention over the past decades ...
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Recent progress on germanium-based anodes for lithium ion …
With a layered structure, the energy barriers for the diffusion of alkali atoms on germanium sulfides are very low (0.236 eV for Li, 0.090 eV for Na and 0.050 eV for K), ensuring high charge/discharge rates.
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Energy Storage in Urban Areas: The Role of Energy …
Positive Energy Districts can be defined as connected urban areas, or energy-efficient and flexible buildings, which emit zero greenhouse gases and manage surpluses of renewable energy production. Energy storage …
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Progress and Perspectives of Lithium Aluminum …
Solid-state lithium batteries are considered promising energy storage devices due to their superior safety and higher energy density than conventional liquid electrolyte-based batteries. Lithium aluminum germanium phosphate (LAGP), …
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Journal of Energy Storage | ScienceDirect by Elsevier
The Journal of Energy Storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage developments worldwide. The journal offers a single, peer-reviewed, multi-disciplinary …
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Trimodal thermal energy storage material for renewable energy ...
The global aim to move away from fossil fuels requires efficient, inexpensive and sustainable energy storage to fully use renewable energy sources. Thermal energy storage materials1,2 in ...
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Germanium–graphene composite anode for high-energy lithium …
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 …
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Designing better batteries for electric vehicles | MIT Energy
Growth in materials supply chains needed to achieve a given solid-state battery production volume in 2030 (in gigawatt-hours) These curves show the compound annual growth rate (CAGR) of supply chains for two materials needed to meet various production levels of two types of solid-state batteries in 2030. The orange curve shows germanium, which is needed …
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Germanium as a Sodium Ion Battery Material:
A significant amount of research is taking place to create energy storage concepts beyond the lithium ion battery and to utilize alternative ions, such as Na, Ca, or Mg, to name a few. This has been a challenge, as materials that work …
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Germanium-Based Nanomaterials for Rechargeable …
Germanium-based nanomaterials have emerged as important candidates for next-generation energy-storage devices owing to their unique …
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Germanium as a Sodium Ion Battery Material:
A significant amount of research is taking place to create energy storage concepts beyond the lithium ion battery and to utilize alternative ions, such as Na, Ca, or Mg, to name a few. This has been a challenge, as materials that work well to store lithium do not necessarily function for other ions. Crystalline germanium (Ge) represents such an ...
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Germanium-Based Nanomaterials for Rechargeable Batteries
Germanium-based nanomaterials have emerged as important candidates for next-generation energy-storage devices owing to their unique chemical and physical properties. 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 technology. The most ...
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High-Performance Lithium Storage Achieved by Chemically …
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.
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Metal Hydrides for Energy Storage
helps to decrease the volume storage density twice. But the process of liquefaction itself requires about 40% of the total energy produced by hydrogen. The hydrogen storage in high surface area materials, like zeolites [9, 10], carbon nanostructures [11–14], or metal-organic frameworks (MOFs) [15, 16] is based on physisorption,
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One-Step Grown Carbonaceous Germanium Nanowires and Their …
The achievement of the full potential of the one-dimensional (1D) Ge or 1D carbonaceous germanium (C-Ge) nanocomposites in energy storage applications requires development toward simpler and scalable synthetic methods to produce a …
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Unique Structural Design and Strategies for …
The biggest challenge for germanium-based materials as commercial anodes for lithium storage is to reduce the costs without sacrificing the electrochemical activity of germanium. Various synthesis techniques, such …
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Germanium–graphene composite anode for high-energy …
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 …
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Critical Minerals and Materials | Department of Energy
3 · Lithium, cobalt, and high-purity nickel, which are often used in energy storage technologies; Platinum group metals, which go in catalysts for automotive, chemical, fuel cell, and green hydrogen products; Gallium and germanium, which are used in semiconductors like transmission lines.
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Recent progress on germanium-based anodes for lithium ion …
With a layered structure, the energy barriers for the diffusion of alkali atoms on germanium sulfides are very low (0.236 eV for Li, 0.090 eV for Na and 0.050 eV for K), …
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Germanium | Podcast | Chemistry World
Germanium falls in the same group as carbon and silicon, but also as tin and lead. Germanium itself is classified as a metalloid. It''s hard at room temperature and looks metallic with a shiny silvery grey finish, but it''s a semiconductor, …
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[News] China''s Gallium and Germanium Export Restrictions Risk …
According to the U.S. Geological Survey, China produces 98% of the world''s gallium and 60% of its germanium. However, since July of last year, the Chinese government has imposed export restrictions on these minerals, causing their prices in Europe to nearly double over the past year. China claims these measures are to protect national security and interests …
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