Key Findings
FDK has confirmed the stable discharge operation of its “SoLiCell” SMD-type small oxide-based all-solid-state battery at temperatures reaching 150°C. In discharge tests where the battery was charged at 23°C and subsequently discharged at 150°C, the device maintained more than 60% of its nominal discharge capacity.
Technical Details
The SoLiCell is designed as a surface-mount device (SMD) compatible with reflow soldering. Its construction utilizes non-flammable materials and oxide-based ceramic sintered bodies. The battery provides a high output voltage of 3V and is characterized by high safety and environmental compatibility.
FDK continues to provide samples of two specific models:
- SCC4532K: Nominal capacity of 0.15mAh
- SCD4532K: Nominal capacity of 0.10mAh
Background and Context
There is a growing demand for small power sources capable of operating in high-temperature environments where conventional batteries fail, particularly for IoT devices used to monitor manufacturing equipment and other high-heat machinery. To address this, FDK has been expanding sample deployments of SoLiCell for various applications, including:
- Real-time clock (RTC) backup power
- IoT devices
- Energy harvesting equipment
Significance and Outlook
The verification of stable discharge at 150°C demonstrates that SoLiCell can serve as a viable power source for sensing and communication equipment operating in extreme thermal conditions. By combining a compact SMD form factor with high-temperature stability and a 3V output, the technology targets industrial niches where traditional battery chemistry is inapplicable.
Source: https://monoist.itmedia.co.jp/mn/articles/2611/05/news042.html
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