Phone batteries have typically been held in place and removed using a sliding mechanism, but as devices like smartphones and tablet computers become increasingly thinner and lighter, their space and weight requirements leave less space for traditional slide-in hard case batteries. Additionally, as the power demands of mobile phones grow, their batteries must be able facilitate higher energy use. This creates an engineering challenge: how do you make a battery with higher capacity that is still lightweight and compact enough to and fit inside ultra-flat devices?
The solution is a lithium polymer battery (sometimes abbreviated as LiPo). Unlike lithium-ion cylindrical and prismatic cells, which have a rigid case, LiPo cells have a flexible, foil-type (polymer laminate) case, which means the cells are more than 20% lighter than equivalent cylindrical cells of the same capacity. This means manufacturers can easily produce batteries of almost any desired shape, which helps meet the space and weight requirements of mobile phones and tablets. With these factors in mind, manufacturers are turning to soft batteries to power the smart phones of the future – and they’re using tesa Bond & Detach® to hold these LiPo batteries in place.