devices (设备). The new paper-digesting battery is thin enough to fit inside a small device. The next step is to increase the amount of power the battery produces. This will make it a welcome replacement ……

at Tohoku University in Japan unveiled (推出) a paper battery that can produce power using water... at Tohoku University in Japan unveiled (推出) a paper battery that can produce power using water and oxygen ……

that is as thin as a human hair. This battery is small enough to power robots that are no bigger than.... This new battery lets them work without needing external power. Currently, these batteries ……

, the battery makes up in staying power what it lacks in size. With a simple recharging, it can last for 10...A RECENTLY developed battery is believed to be the smallest implant battery in the world. It may ……

NOW you don’t have to worry if your MP3’s battery (电池量) is low. Stick it in a pair of special shoes to get power (能量). It is an idea from scientists in the US. The shoes get power when people walk ……

Power ‘tree’ 充电树Look at this “tree”. Its leaves are solar panels (太阳能电池板). The panels can get energy (能量) from the sun. The energy stays in a battery (电池) under the tree. So you can connect (连接) your ……

five minutes! The technology is from China. It works best with a special phone battery (电池). The battery can fold (折叠), and can hold 10 percent more power than usual ones. With new technology (技术 ……

) your battery at the same time. This battery is designed by Hwang Yeon-gyeong from South Korea. It has a spring (弹簧) inside. Wind it up and it will then give at least 20 minutes’ power. 21ST ……

quality.● Long-life battery Kindle doesn’t need power to show a page of text, allowing you to read... for a school project, saving parts that would help with my paper. When I was done, I realized that I could ……

harvest enough electricity to power a cell phone battery for about four days from a spoonful of sugar... power (太阳能) was 20 or 30 years ago."But he believes the battery could be used in scientific equipment ……

of electricity can be used to charge up a battery, which can discharge large amounts of power when needed.Scientists say that we can get enough electricity to power a cell phone battery for about four days from ……

, but it will make it harder for you to walk. Instead, the scientists found that most of the battery power... that it takes power from the device instead of your cell phone battery. “By doing this, your cell phone ……

, but it will make it harder for you to walk. Instead, the scientists found that most of the battery power... that it takes power from the device instead of your cell phone battery. “By doing this, your cell phone ……

no battery power. And it doesn't have to be turned on before you can read it.Given that, the mystery...."The arrival of computers everywhere in the workplace would, we were assured, soon make paper a thing ……

thing. So he made an app that you can only use when your battery power is at 5 percent or less. The app... stressed out sometimes when our phone’s battery (电池) is dying. Dries Depoorter, a media artist living ……