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Thermochromism refers to the phenomenon where a material undergoes color changes under temperature changes. This change is usually caused by changes in the electronic or molecular structure of the material. Its application principle mainly involves t...
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product origin:
Jiangsu, Chinalead time:
depends onpayment:
100% advance paymentNano Germanium Powders 100-200nm China supplier used for battery
Product name
Nano Germanium Powders
MF
Ge
Particle size
100-200nm (D50)
Purity
99.9%
Morphology
near spherical
Appearance
ash black
MOQ
100g
Application
battery, etc
As a new type of negative electrode material for lithium-ion batteries, germanium has the advantages of high reversible capacity and low voltage platform. It is expected to replace graphite negative electrode materials and has attracted continuous attention. However, during the process of lithium ion embedding and extraction, the drastic volume change of germanium will cause its capacity to decay rapidly. On the one hand, the nanostructured germanium material can alleviate the volume expansion, and on the other hand, it can improve the electronic conductivity and shorten the lithium ion conduction distance, making it very promising for application in lithium battery negative electrodes. At the same time, reducing the ratio of inactive materials in electrode materials is also of great significance.
Nano-germanium (nc-Ge:H) has the advantages of narrow band gap, high absorption coefficient, and high mobility. Its application in the absorption layer of solar cells can effectively expand the absorption of the infrared band spectrum of solar cells.
Science and Technology Daily, Moscow, June 27 (Reporter Dong Yingbi) Researchers from the Russian State University of Technology and the Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences used germanium nanocrystal anodes to make lithium-ion batteries have unprecedented "cold resistance", thereby avoiding the large loss of charge in lithium-ion batteries under low temperature conditions.
The performance of GaAs/Ge solar cells made with germanium as the substrate is close to that of GaAs/GaAs cells, but the mechanical strength is higher and the single cell area is larger. In the space application environment, the radiation threshold is higher than that of silicon cells, the performance degradation is small, and the application cost is close to that of silicon panels of the same power. It has been used in various types of military satellites and some commercial satellites, and has gradually become the main space power source.
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