The lithium-ion battery is an energy powering solution that is widely used in electric devices nowadays. Accompany the rapid growth of the electric vehicle market, and the key battery manufactures have increased their capacity to catch the market ramp-up. The battery cell and brand makers are developing the lithium-ion battery recycling business and creating a circular economy. This thesis will specifically discuss the lithium-ion battery market from the overview, forecast, and the current key manufacturers. It will also introduce the recycling business, the existing players, and solutions to determine opportunities to approach the recycling market in Taiwan.