For smart phones, the battery life has been the selling point of the product, not only is the battery life, even the most basic security problems also arise, which means that the battery needs reform? Recently, Northwestern University researchers discovered a new material called COF (Covalent Organic Framework), which will likely break the current status of lithium battery-led mobile devices. The team led by William Dichtel is currently working on COF research, and they have also made quite a bit of upfront investment. "COF (covalent organic framework)" was crystal structure, this structure is precisely formed for storing electrical energy pores, contribute to the conductive material filling. The study found that the new material can withstand tens of thousands of charge-discharge cycles, the overall capacity of 10 times the traditional material, and recharge rate can be up to 15 times. In addition to Northwestern University, commercial companies such as Samsung, Apple and Tesla are also striving to improve their battery products in an attempt to increase their storage capacity while reducing weight. A battery company called Amprius even uses nanotechnology in battery technology, using silicon and sulfur to create a very complex electrode structure that ensures that the battery can outgrow standard products in terms of capacity and speed. Regardless of how to improve the charging speed and endurance, or suggest that manufacturers have to invest in the most basic security issues, the future of the battery there is still a long way to go.