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“Ocean Battery resolves a societal challenge to provide access to renewable power generation without destabilizing the power grid and meet our climate goals. The Dutch Water engineers resolved this problem in a brilliant yet simple way with a tremendous amount of creativity, innovation power and Dutch entrepreneurship,” the press release continues.

Keep reading for more on this exciting new piece of technology, that could be revolutionary for the transition to cleaner means of energy.

Coin cells are useful things that allow us to run small electronic devices off a tiny power source. However, they don’t have a lot of capacity, and they can run out pretty quickly if you’re hitting them hard when developing a project. Thankfully, [bobricius] has just the tool to help.

The device is simple – it’s a PCB sized just so to fit into a slot for a CR2016 or CR2032 coin cell. The standard board fits a CR2016 slot thanks to the thickness of the PCB, and a shim PCB can be used to allow the device to be used in a CR2032-sized slot instead.

It’s powered via a Micro USB connector, and has a small regulator on board to step down the 5 V supply to the requisite 3 V expected from a typical coin cell. [bobricius] also gave the device a neat additional feature – a pair of pads for easy attachment of multimeter current probes. Simply open the jumper on the board, hook up a pair of leads, and it’s easy to measure the current being drawn from the ersatz coin cell.

And it’s the size of a grain of dust. Energy storage might have been revolutionized thanks to a common dessert dish.


Advances in microelectronics have enabled the use of miniaturized computers for autonomous intelligence at the size of a dust particle less than one square millimeter across and a few hundred micrometers thick, creating an environment for ubiquitous computing. However, the size mismatch between microbatteries and microelectronics has emerged as a fundamental barrier against the take-off of tiny intelligent systems requiring power anytime anywhere. Mainstream microbattery structures include stacked thin films on the chip or electrode pillars and on-chip interdigitated microelectrodes. Nevertheless, available technologies cannot shrink the footprint area of batteries while maintaining adequate energy storage. Alternatively, the on-chip self-assembly process known as micro-origami is capable of winding stacked thin films into Swiss-roll structures to reduce the footprint area, which exactly mimics the manufacture of the most successful full-sized batteries—cylinder batteries. In addition to discussing in detail the technical difficulties of reducing the size of on-chip microbatteries with various structures and potential solutions, this Perspective highlights the following two basic requirements for eventual integration in microcomputers: minimum energy density of 100 microwatt-hour per square centimeter and monolithic integration with other functional electric circuits on the chip.

Space Race 2.0 is heating up.

There’s no use denying it: Space Race 2.0 is heating up.

But while the focus remains on public-private partnerships in low-Earth orbit, space junk, and finally human settlements on the moon and Mars, a remnant of that original space race spirit is beginning to awaken: the push to explore the outer edges of our solar system, and beyond.

Last year, China announced it was developing a pair of spacecraft capable of exploring the very edge of our solar system. According to an official industry newspaper called *China Space News Friday*, the mission “Interstellar Express” promised the potential to enter interstellar space by the middle of the century.

Glass isn’t uncommon on the Moon. But these spheres are.

China’s Yutu-2 lunar rover on a mission to find out more about the far side of the Moon has made a startling new discovery. It has found mysterious glass spheres that may have captured within them important information about the Moon’s composition and history of its impact events, * Science Alert* reported.

Originally scheduled to be operational on the lunar surface for just three months, the Yutu-2 now holds the record of being the longest operational rover on the Moon. When it landed in 2019, it became the first rover to reach the far side of the Moon and has since been providing us insights about the side we cannot see from Earth. Last month, we learned that the soil on the far side is a lot stickier, and now there is the mystery of the glass spheres on the Moon aren’t a new finding. But the nature of these spheres makes them interesting and possibly a gateway for future missions.