FAQ

This page provides an overview of the small all-solid-state SMD battery SoLiCell®, focusing on frequently asked questions and their answers that commonly arise prior to implementation. It covers topics including the definition and structure of all-solid-state batteries, as well as safety, charging methods, required power, and intended applications. From a technical perspective, the page clearly explains the types of applications for which SoLiCell® is well suited.

About an All-Solid-State Battery

What is an All-Solid-State Battery?

An All-Solid-State Battery is a type of battery in which all constituent materials, including the electrolyte, are made entirely of solid materials.

What is the advantages of an All-Solid-State Battery?

The main advantages of an all-solid-state battery are as follows:

  • It eliminates the risk of liquid leakage because no liquid electrolytes are used, offering a high level of safety.
  • It allows use in special environments, such as vacuum conditions or rotating systems.
  • It is suitable for devices that require long-term reliability.

What materials are used in the battery?

An oxide-based solid electrolyte and FDK's proprietary positive materials are used.
For more details, please refer to R&D - All-Solid-State Batteries.

Notes for Use

Can multiple the battery units be used together?

The battery can be used in parallel or series connections.
However, there are certain usage limitations. Please consult us in advance before implementing such configurations.

How should the battery be charged?

Charging is possible using CC-CV or CR-CV charging methods.
For detailed charge and discharge conditions, please contact us.

Is a Safety Data Sheet (SDS) available?

Yes. The Safety Data Sheet (SDS) can be downloaded from the SDS page.

What applications is the battery suitable for?

SoLiCell® is designed for use as a power source in applications that require long service life, high safety, and micro-power charging capability, including:

  • Sensors
  • Communication devices
  • Backup power for RTCs (Real-Time Clocks)
  • Backup power for SRAMs / MCUs
  • IoT devices
Applications of SoLiCell®

How much power is required to charge the battery?

Depending on the model, sufficient charging is possible with less than 1mW per cell.
Therefore, the battery can be charged even with the very small amount of power generated through energy harvesting.
For detailed charging conditions, please contact us.

Samples

How can I obtain samples?

Please submit your request via the inquiry form.
When providing samples, we may ask for details regarding the intended application and usage environment.