What may occur in IoT device’s future?
IoT devices are expanding thanks to network communication growth, as seen with the evolution of 5G or LPWAN(Low-Power Wide-Area Network). However its battery exchange cost would limit its full potential since many of IoT devices are operated with batteries. As IoT device deployment spreads wider and wider, battery exchange costs become prohibitive to expanding to more applications.
The solution that makes the future realistic
Energy harvesting technology is one of the solutions for this problem. It can generate electricity from tiny energy surrounding us. To utilize it efficiently, voltage conversion and energy storing is essential because harvested energy is tiny and not always available. Therefore we collaborated to create an easy-to-use energy harvesting demo kit to propose the solution for such problems. That consists of Fujikura’s die-sensitized solar cell, NGK Insulators’ EnerCera® battery, and e-peas’ power management IC. IoT device makers can easily replace the battery with this demo kit and consider whether our solution is suitable for their devices or not.
Benefits of using this demo kit
Fujikura’s dye-sensitized solar cell is optimized to generate electricity in wide range of illuminance allowing for use anywhere, in sunlight, in shade, in bad weather and indoors. e-peas’ power management IC is optimized for energy harvesting power source and provides highly efficient DCDC conversion from tiny harvested energy to IoT device’s input voltage.
NGK Insulator’s EnerCera® is an ultra-small/ultra-thin onboard-type high-performance battery for operating ICs, sensors and a wireless communication system.
AEM10941 e-peas/Fujikura/NGK Energy Harvesting Module
- Output voltage: 3V.
- Dimensions: 44 x 85 mm
- Battery capacity: 100mWh (27mAh)
- Solar power generation: 165μW under white LED 200lx
Features of each product:
Fujikura die-centitized solar cell
- High power generation is available over a wide range of lighting conditions: in sunlight, in shade, in bad weather, indoors, etc.
- High power generation over a wide range of temperatures; -30 to 60 degree Celsius
- The cells can be installed without regard to the position of the light source. Since power can be generated from scattered light, there is no need to make sure they are oriented toward the light source.
- It is okay for part of the DSSCs to be in shadow. They avoid the problems that most multiple series solar cells can experience due to shadows.
- Durable enough to be used both indoors and outdoors
NGK Insulators’ EnerCera® battery
EnerCera battery series is a semi solid-state* rechargeable battery which incorporates NGK’s proprietary crystal-oriented ceramic electrodes.
Ultra-thin, High-heat-resistance, and high-power Lithium-ion rechargeable batteries best suited for IoT devices . Despite its ultra-compact and thin profile, EnerCera battery has 50 to 100% higher capacity than the conventional rechargeable batteries, allowing to reduce the battery charging cycle by two-thirds, or even half.
EnerCera battery with its internal resistance to be half of that of conventional rechargeable batteries of comparable size, making them suitable power source for wireless communication applications, such as BLE (Bluetooth Low Energy), LPWA (Low-Power Wide-Area Network) and cellular application, with power consumption to be in the order of tens to hundreds of milliamps.
e-peas’ power management IC
AEM10941 – is an integrated energy management circuit that extracts DC power from up to 7-cell solar panels to simultaneously store energy in a rechargeable element and supply the system with two independent regulated voltages. The AEM10941 is an ambient energy manager that extracts power from photovoltaic harvesters to simultaneously store energy in a rechargeable element and supply your system with two independent regulated voltages.
The evaluation kit allows users to test the e-peas IC, the Fujikura PV cell and the NGK storage element and analyze its performances in a laboratory-like setting. It allows an easy connection to a 3 V regulated voltage provided by a DCDC BUCK converter. It also provides all the configuration access to set the device in any one of the modes described in the datasheet. The control and status signals are available on test point, allowing users to configure it for any usage scenario and evaluate the relevant performances. The AEM10941 evaluation board with Fujikura PV cell and NGK storage element is a plug and play, intuitive and efficient tool for making the appropriate decisions for the design of a highly efficient subsystem in your target application.
How to get the demo kit?
To buy the kit, please send us a purchase request at firstname.lastname@example.org.
Full company details:
Rue Fond Cattelain 1 b. 4
1435 Mont-Saint-Guibert, Belgium
T: +32 10 77 12 30
E : email@example.com
VAT : BE0506 674 451
E : firstname.lastname@example.org
VAT : BE0506 674 451
1-5-1, Kiba, Koto-ku, Tokyo 135-8512, Japan
E-mail : email@example.com
NGK Insulators, LTD.
2-56 Suda-cho, Mizuho, Nagoya, Aichi 467-8530, Japan
E-mail : firstname.lastname@example.org
Since its founding in 1885, Fujikura has researched, developed, and manufactured wires and cables, giving rise to numerous “Tsunagu” (connecting) technologies along the way. The company has used these technologies to consistently deliver highly reliable products to customers operating in the realms of energy, telecommunications, electronics, and automotive components, thus contributing to development in Japan, and other countries and regions around the world. We have developed DSSC by leveraging the technologies cultivated over the 135-year history.
About NGK Insulators
NGK Insulators (NGK) is a leading company in the field of ceramics. Since its foundation in 1919, NGK has used its unique ceramic technology to provide numerous ground-breaking products that solve social issues. Today, NGK is active in more than 20 countries worldwide, with business foci including mobility, energy, IT and industry.
As one of the largest manufacturers of ceramic substrates for automotive catalytic converters, NGK is actively reducing the strain on our global environment. Furthermore, NGK’s products include the energy storage system “NAS” battery, in addition to the compact, thin and high-energy-density lithium-ion rechargeable “EnerCera” battery line, vital tools for sustainable energy infrastructure.
Through providing innovative, high-quality products, NGK is committed to contributing to our society. In order to create a future where people can coexist with nature, we will continue to develop and provide products that support social infrastructure while preserving the environment.
e-peas develops and markets disruptive ultra-low power semiconductor technology. This enables industrial and IoT wireless product designers to substantially extend battery lifespans and eliminate the heavy call-out costs of replacing batteries, without in any way compromising on reliability. Relying on 15 years of research and patented intellectual property, the company’s products increase the amount of harvested energy and drastically reduce the energy consumption of all power consuming blocks within wireless sensor nodes. Headquartered in Mont-Saint-Guibert, Belgium, with additional offices in Switzerland and the USA, e-peas offers a portfolio of energy harvesting power management interface ICs, microcontrollers and sensor solutions.