The role of powder spray energy storage chassis

What role does powder composition play in coating microstructure & thermomechanical properties?

You have full access to this open access article Since the early stages of thermal spray, it has been recognized that the powder composition, size distribution, shape, mass density, mechanical resistance, components distribution for composite particles play a key role in coating microstructure and thermo mechanical properties.

How does the powder spray method work?

As shown in the schematic diagram (Fig. 3 c), the powder spray method applies powder to the current collector through a powder application device, and then fix the powder on the current collector through hot rolling.

How does a powder spray film formation process work?

For a typical powder spray film formation process, the mixed powder is first deposited onto current collector through the spraying device, forming a loose accumulation on the substrate (Fig. 4 a). Then the binder is melted by heating to its melting point to bond and fix the powder on the current collector to form an electrode film (Fig. 4 b, c).

What is powder spray used for?

Powder spray is mainly used in the preparation of LIB electrodes, followed by SCs electrode and ASSBs preparation. In 2004, Chaturvedi et al. released a patent for applying powder spray technology to the preparation of SC electrodes.

Can powder spray be used in a roll-to-roll manner?

Powder spray production can be used in a roll-to-roll manner, with surface energy density and electrode size exceeding the requirements of power batteries and portable electronic devices. Therefore, it is suitable for energy storage fields, such as the electrodes and electrolyte layers of ASSBs, SCs, LIBs, and etc. 4).

How is shs7574 powder sprayed?

The SHS7574 powder was successively sprayed with D-gun and HVOF (Ref 152). A new iron-base cored wire, SHS7170, which readily forms nanocomposite coatings, was sprayed using the wire-arc process (Ref 153). The oxide content in the coatings is very low and is typically <1 vol%.