Abstract:  ABSTRACT： Charge pile sharing is an innovative service mode to solve charging problems. This paper analyzes the drawbacks of the centralized sharing platform in credit system, information security, revenue distribution and data sharing, and points out that the block chain technology, which has the characteristics of distributed point-to-point, de-centralization, consensus trust mechanism and information immutability, is the ideal choice for implementing sharing system. Since individual technology is difficult to meet the diverse needs of complex application systems, a number of technical interactions need to be used to complement each other. Based on block chain, lightning network and smart contract technology, this paper proposes a block chain ecosystem to build a secure, efficient and automated sharing platform. Combining electric vehicle charging scenarios, this paper presents the establishment of the payment network based on the lightning network and the realization of the smart contract based on the hash key verification. Finally, the application possibility of energy block chain in the aspects of electricity sales management, demand response management and new energy accommodation is discussed.

Key words:  block chain, lightning network, smart contract, charging, share, transaction