The number of spent advanced batteries will be increasing with the growing popularity of electric vehicles (EV). Other than EVs, advanced battery technology like lithium-ion battery is increasingly being used in stationary storage applications such as back-up power for telecom sectors, data centers, renewable energy integrations, and increasingly other applications. As the use of advanced battery increases, the demand for its raw materials will also rise. Hence recycling of battery materials will have a positive impact from environmental and economic perspective. The ‘Battery recycling’ knowledge paper covers different recycling technologies for various batteries, recycling initiatives globally, and the present status of recycling in India. The knowledge paper is a part of the IESA RE-use & Recycling Initiative (IRRI) for Battery Recycling. The focus areas for the initiative are battery collection mechanism, encouraging battery recycling research, creating awareness for the need for recycling batteries, and commercial opportunities for ‘Urban Mining’.