Oxidation-reduction (redox) reaction is one type of chemical reaction that involves the transfer of electrons, with oxidation and reduction referring to the loss and gain of electrons, respectively. Voltaic pile was the first practical electrochemical system (or battery) that could continuously provide electrical current. A Voltaic pile consists two electrodes, copper (or silver) and zinc… Read more: Voltaic pile
Apple and Samsung are the two major smartphone players with long history. The evolution of battery size of their phone models also tells us the evolution of battery technologies over the years. The following image shows that the battery size of iPhone is gradually increased over the years, but not substantially. The big change of… Read more: A glimpse of the evolution of smartphone battery
Each year, many of us are excited about the newly released smartphones. These phones are nothing but amazing integrated products with beautiful design and astonishing engineering. To keep these power-hungry device running, we need larger than ever batteries. So, how big are the batteries and how fast can we charge them? Model Release date Capacity… Read more: The battery of highly rated smartphones (2023)
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