Research on Recycling Mode of Used Power Batteries under the Perspective of Blockchain

In the context of the country's' dual carbon 'strategy, the recycling of new energy vehicle (NEV) power batteries has become a critical component of industrial upgrading. According to the Ministry of Industry and Information Technology (MIIT), China is expected to have 780,000 tons of retired NEVs by 2025. However, the current recycling system faces significant challenges due to low recovery rates and inefficient cascaded utilization. Building an efficient recycling network and enhancing resource utilization efficiency are now the core bottlenecks hindering the industry's sustainable development. This article, through field research, systematically analyzes the current participation status of various entities in the battery recycling industry chain, including car manufacturers, recycling companies, and consumers. It also delves into the characteristics and core issues of the current mainstream recycling model, identifying two main problems: first, the front-end recycling entities are scattered, making it difficult to form a large-scale recycling network; second, data silos across the industry chain severely impede the efficiency of cascaded utilization. To address the aforementioned challenges, an innovative 'dual-chain integration' solution has been proposed. This solution involves designing a battery recycling model based on a battery leasing system and a battery reuse model based on blockchain technology, during both the recycling and battery reuse phases. The aim is to tackle the current issues of low power battery recycling rates and inefficient cascaded utilization. Furthermore, this paper explores the feasibility of the battery recycling and reuse model based on blockchain technology using a game theory model. It is projected that by 2025, this recycling model could generate 35 billion yuan in economic benefits and reduce carbon dioxide emissions by 30 million tons, effectively supporting the goals of carbon peak and carbon neutrality, as well as the construction of a beautiful China.