We can’t imagine that what today’s connected and mobile lifestyle would be like without energy. To meet countless consumer demands for mobility and freedom of moving, advanced battery innovation is now more important and potentially more lucrative than ever.
As such, rechargeable battery pack is proliferating at end-use products as a supplemental energy. Take Infinite One portable charger for example, it can offer smartphone users one week power with 8000mAh capacity in A+ class lithium polymer battery, and charge smartphone, tablet, Gopro camera, MP3 player and all out USB-Powered devices at full charging speed. The Li-ion battery has captured the hearts of consumers with its rechargeable nature, but there are also many other technologies that people commonly use to store energy. Here is a list.
One of the oldest techniques people have used is the falling weight. You lift the weight to store the energy in it and then let the weight fall to extract the energy. Many grandfather clocks and cuckoo clocks use this technique. By running the string attached to the weights through a gear train, you can use a heavy weight and let it fall over a long period of time.
Many power plants use the “falling weight” approach in the form of water. The water is pumped uphill to a lake at night when the power plant has excess capacity. During high-demand daytime periods, the water runs through a turbine on its way downhill to a lower lake.
Another way to store energy is in some form of repeatable mechanical deformation. This is the idea behind a spring used in a wind-up clock or a rubber band used in a wind-up airplane. You store the energy by bending (deforming) the material in a spring, and the material releases the energy as it returns to its original shape.
Nature has been storing energy for a long time, and if you want to think about it in this way, gasoline is really a form of stored energy. Plants absorb sunlight and turn it into carbohydrates. Over millions of years, these carbohydrates can turn into oil or coal.
You can take energy and split water into its hydrogen and oxygen atoms using electrolysis. By storing the hydrogen and oxygen in tanks, you can later create energy by burning it, or by running it through a fuel cell.
You can use the energy to spin up a flywheel and then later extract the energy by using the flywheel to run a generator.
You can store heat directly and later convert the heat to another form of energy like electricity.
You can use compressed air to store energy. Toys like the Air Hog store energy in this way.
One of the new technologies that may become available in the future involves antimatter. When you combine normal matter with antimatter, you get energy.