Solid-state battery high voltage technical requirements

How to achieve high-voltage solid-state lithium batteries?

In order to achieve high-voltage solid-state lithium batteries, it is not only necessary to focus on the high-voltage stability of the PEs, but also to consider the ionic conductivity, electrode and electrolyte compatibility, and the feasibility for achieving industrial development.

Are solid-state batteries safe?

Solid-state batteries with features of high potential for high energy density and improved safety have gained considerable attention and witnessed fast growing interests in the past decade. Significant progress and numerous efforts have been made on materials discovery, interface characterizations, and device fabrication.

Can electrolyte structure design be used for high-voltage solid-state batteries?

Electrolyte structure design is often employed to suppress interface reactions (including high-concentration electrolytes) to broaden the ESW and inhibit gas generation in high-concentration or locally concentrated electrolytes . This article reviews the research progress and challenges of PEs for high-voltage solid-state batteries.

What are the emphases of high-voltage lithium batteries?

Emphases are placed on the interfacial compatibility between electrolytes and cathodes, such as mechanical contacts and interface chemical stability, which are critical to the lifespan of high-voltage lithium batteries. Moreover, guidelines for the future development of high-voltage solid-state lithium batteries are also discussed.

Are PES suitable for high-voltage solid-state batteries?

This article reviews the research progress and challenges of PEs for high-voltage solid-state batteries. PEs need to simultaneously have broad ESW and compatibility with electrode interfaces. The high-voltage compatibility can be achieved by designing layered composite structures or interface passivation.

How to design high-voltage batteries?

The design of high-voltage batteries also needs to consider the compatibility between PEs and electrodes, normally involving two main aspects: first, poor physical contacts at the cathode-electrolyte interface lead to solid-solid contact deterioration (SPEs and CPEs).