My invention_SP-Phone
The name is SP-Phone(Solar,Power,Phone) SP-Phone means device by solar power. One of the most usuful things is that you do not charge your device yourself. (no need plug into electrical outlet.) My Invention is combination solar battery sheets and device like smartphone which powered by electlicity. Original problems 1. Lack of electricity While the number of products which powered by electricity has increased year by year, the shortage of electricity supply has been problem. 2. Energy problem Most of the raw materials used to produce electricity are fassile fuels. The amount of fassile fuels as main raw material is limited. In addition, using fassile fuels is one cause of global warming. Therefore, renewable energy like solar-power generation has been in the spotlight for the last decades. 3. Hassle of charging everyday Most people charge some devices everyday. Sometimes, the battery runs out of power and device cannnot be used. Solution [Key words] "Sunlight" and &qu