FDK Unveils Tiny SMD Solid-State Batteries

FDK SMD Battery

Coin-cell batteries are often used in wearables or system with a real-time clock (RTC). They do the job just fine, but over many years they may start to leak, and some applications may benefit from even smaller batteries. Leaking can be solved by going with solid-state batteries, and we’ve seen in the past TDK launch CeraCharge solid-state batteries packaged into an ultra small SMD form factor. TDK CeraCharge batteries now have at least one competitor with FDK introducing their own SMD solid-state batteries using a high electrochemical potential cathode material “lithium cobalt pyrophosphate” (Li2CoP2O7). Key features: Energy Density – 26mWh/cm3 Voltage / Capacity – High voltage 3.0V, “high capacity” 140μAh Dimensions – SMD type; 4.0mm x 2.0mm x 2.0mm Temperature range – -20 – +105℃ Safety – High safety and environmental adaptability, use inflammable materials, use stable oxide sintered ceramics (sulfide free) The small size, high capacity, and wide temperature […]

TDK CeraCharge Solid State Battery-in-a-Chip is Designed for IoT & Wearables

We’ve recently seen solid state batteries are prone to dislodge current Lithium Ion battery technology as they are safer, support higher energy density, and faster charging. Such batteries are expected to be seen in car in the first part of the next decade, in smartphones starting possibly in 2019, but TDK has just announced their own CeraCharge rechargeable solid state SMD battery with mass production scheduled to start in April 2018. TDK CeraCharge battery-in-a-chip will come in compact EIA 1812 package (4.5 x 3.2 x 1.1 mm), offer a capacity of 100 µAh at a rated voltage of 1.4 V, and can be recharged up to 1000 times. Potential applications include IoT devices, real-time clocks, Bluetooth beacons, and systems for energy harvesting. The battery – which will look very similar to an SMD capacitor – does not include liquid electrolyte, and instead uses a solid ceramic element as electrolyte which rules out any risk of fire, explosion, […]

Prologium Lithium Ceramic Solid State Batteries Don’t Catch Fire, Nor Explode

You must have read articles or watch videos showing laptop or smartphone battery explode, and Lithium-ion batteries are considered hazardous enough that they are banned from airplane without the proper paper work. Such batteries can catch fire or even exploded when overcharged, or physically damaged. We have protection circuits for the former, and physical damage seldom happens, so in most cases the batteries are safe, and that’s why they are still used in laptops and phones. However, if you need maximum safety, Lithium ceramic battery (LCB) may be the way to go. Those are still Lithium-ion battery cells, but they replace the liquid polymer separator found in Li polymer battery (LPB) by a solid-state ceramic electrolyte, and you can mistreat them almost as much as you like with overcharge, cut them, bend them, and they won’t catch fire, nor explode. One company that makes such batteries is Taiwan based Prologium […]