Fan-Shaped Laser Battery

Why is laser 3D manufacturing important for rechargeable battery cell manufacturing?

Laser 3D manufacturing techniques offer excellent 3D microstructure controllability, good design flexibility, process simplicity, and high energy and cost efficiencies, which are beneficial for rechargeable battery cell manufacturing.

How is laser ablation used in battery cell manufacturing?

Besides PLD, the laser ablation method has been used for cutting conventionally fabricated electrode sheets into a desired size or shape [ 109, 110, 111, 112 ]. In the battery cell manufacturing process, the fabricated electrodes are mechanically cut to size using a die cutter and stacked with other cell components.

Does laser modification improve battery performance?

Furthermore, the modification of electrode materials by laser is also anticipated to enhance the charge and ion transport properties of the battery and the permeability of the electrolyte, thereby improving the electrochemical performance of the battery.

How can laser cutting improve the cutting surface quality of battery electrodes?

The enhancement of the cutting surface quality of the electrodes can be achieved by optimizing laser processing parameters, including laser power and scanning speed . They also found that the microstructures created by laser cutting greatly enhanced the wettability and performance of the battery electrodes [30, 31].

Are laser printed microbatteries better than sputter-deposited micro batteries?

The laser printed microbatteries exhibited an order of magnitude higher areal capacity of ~ 2586 mAh/cm 2 than that reported for the sputter-deposited thin-film microbatteries (~ 160 mAh/cm 2) [ 95 ].

What are the advantages of laser cutting a lithium ion battery?

The laser cutting structure also improves the electrolyte's diffusion and wetting ability, as well as the electron and lithium-ion transport kinetics. Furthermore, the excellent structural uniformity reduces the generation of electrode lithium dendrites and ensures the battery's safety.