Solid state dunne-film-energieopslag

What is a large-area solid-state electrolyte (SSE) film?

Large-area solid-state electrolyte (SSE) films with adequate thickness control, improved ionic conductivity, and good interfacial contact can reduce internal resistance, increase the real energy density of batteries, and reduce manufacturing costs.

Can thin film technology be used in solid-state batteries?

In 2008, the representation of a thin film 3D, integrated, solid-state Li-ion battery structure and prototype was published further, and related research on the application of thin film techniques, such as ALD, to solid-state batteries was initiated (Fig. 4) [ 38 ].

Do large-area SSE films affect the electrochemical performance of solid-state lithium-ion batteries?

In addition, the effects of large-area SSE films on the electrochemical performance of solid-state batteries and their applications in pouch solid-state lithium-ion battery systems are discussed in detail. Finally, the design principles of SSE particles and SSE films are summarized and the development direction of thin SSEs is envisaged.

How does dispersibility affect ion conductivity of SSE films?

For preparing SSE films through wet-chemical methods, the dispersibility of the slurry is a critical factor in affecting the mechanical strength and ion conductivity of SSE films. SSE films exhibit significant differences in ion conductivity (ranging from 10 −5 to 10 −3 S cm −1), even when using similar polymer binders and electrolytes.

How to improve ion conductivity of SSE films?

In addition to optimizing the process parameters of the slurry, developing new slurry systems by introducing additives is an effective strategy to reduce film porosity and improve ion conductivity. By adding trace amounts of liquid electrolyte, the ion conductivity of SSE films can be greatly improved.

What is a 3D Thin-film solid state battery (TssB)?

Pearse et al. have created fully conformal 3D thin-film solid state batteries (TSSB). All active battery components such as electrodes, solid electrolyte, and current collectors were deposited via ALD process (Fig. 8 a and b). Li 2 PO 2 N was employed as an electrolyte with a thickness of 40–100 nm utilizing LiO t Bu and DEPA.