Abstract—The advances in Electric Vehicles (EVs) will intensify the demand of decentralized and privacypreserving Vehicle-to-Vehicle (V2V) charging schemes. However, current blockchain methods only protect the privacy of users from identity and linkability attack, quantum adversary attack. This paper introduces a lightweight and none-privacy-revealing CV2C charging protocol based on lattice-based linkable ring signatures over the Ring-SIS assumption, aiming at providing future postquantum secure communication with high degree of anonymity, unlinkability and accountability. We design key generation to be certificateless – containing no escrowed keys while facilitating scalable identity management, and provide a lattice-based stealth address scheme which generates onetime unlinkable payment addresses for increased recipient privacy. The protocol runs on a consortium blockchain and employs Practical Byzantine Fault Tolerance (PBFT) for fast validation of the transactions and transparency. A security analysis is provided and resistance against forgery, replay, and quantum attacks is shown. Performance analysis indicates that the required computational and communication overheads are much lower than those of elliptic-curve and pairing-based schemes, which reveals its suitability for EV environments with limited resources. The proposed scheme is a practical and secure structure for future V2V energy trading-based systems.