Apple granted patent for ‘jelly roll’ battery
Apple has been granted a patent (number 20120107654) for a rechargeable battery with a jelly roll having multiple thicknesses.
This battery cell includes a jelly roll enclosed in a pouch, wherein the jelly roll includes layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The jelly roll also includes a first conductive tab coupled to the cathode and a second conductive tab coupled to the anode.
Read More