Default Higher capacity battery

Hello guys, searching the net for higher capacity batteries i've found this http://www.aliexpress.com/item/free-...303576275.html .
Did anyone found something like this, but from normal famous manufacturer? Two years ago I bought for my Galaxy S a PolarCell battery with higher capacity, which really lasts longer as the original and was only one or half mm thicker. Why the hell there no such batteries for our N4 or I'm not searching good enough?