Dynamic Equilibrium Strategy of Power Battery Closed-Loop Supply Chain Based on Stochastic Differential Game

Table 1

Description of variables.

Variable	Description	Variable	Description
	Unit sales price of new power battery		Cascade utilization effort level
	Unit production cost of new power battery		Electric vehicle market’s market size
	Unit reproduction cost of waste power battery		Electric vehicle market’s price sensitivity coefficient
	Recovery rate of waste battery		Cascade utilization market’s market size
	Unit price of retired battery recovered by recycler		Cascade utilization market’s price sensitivity coefficient
	Unit wholesale price at which recycler sells high-energy density battery		Cascade utilization effort utility
	Uniform price for manufacturer to recycle waste battery		Cascade utilization effort utility cost coefficient
	Unit sales price of cascade utilization battery sold by cascade utilization enterprise		Influence coefficient of cascade utilization effort utility on effort level
	Unit recovery cost of cascade utilization enterprise		Attenuation coefficient of cascade utilization effort level
	Cascade utilization effort utility cost-sharing coefficient		Discount rate
	Standard wiener process		Volatility of cascade utilization effort level
	Unit cost-saving of remanufactured products produced by manufacturer		Recovery difficulty coefficient