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New Method Of 3 D Printing Allows Smartphone Battery Service Life Is Longer
Aug 01, 2018

Carnegie Mellon university engineers have developed a new method of 3D printing battery electrodes, can be created with the crystal structure of the 3D micro controlled porosity.Their 3D printing method can greatly improve the capacity of lithium ion battery and charging and discharging rate.
If their electrode pores and channels, lithium ion battery capacity can be greatly improved.So far, through the increase of material manufacture best refers to the interior of the porous electrode geometry is fork geometry ((that is, the metal forks with both hands finger interlock, lithium in both between mobile), this allows during charging and discharging lithium by battery transmission effectively, but it is not the best.
Mechanical engineering at Carnegie Mellon university, Rahul Panat and researchers at Carnegie Mellon university and the Missouri university of science and technology cooperation developed a aerosol spray a new method of 3D printing manufacture battery electrodes, the results published in the journal of "material manufacturing".

      Silver cross section view shows the net, make the charge (Li +) ions to transmission to the                                                      collector and the usage of most printing materials.

"Electrodes for lithium ion batteries, with porous structure can lead to higher charge capacity," said Panat."It's because this structure allows the lithium through electrode volume, resulting in very high utilization rate of electrode, thus improve the energy storage capacity."
In the batteries, did not use 30-50% of total volume of the electrode."Our method by using 3D printing to overcome this problem, we create a grid electrode structure, allowing lithium through the effective transmission of the whole electrode, it also improves the battery charging rate," explained Panat.