A Green Titanium‐Cerium Redox Flow Battery with Long‐Term Stability via Efficient Capacity Recovery
Year: 2026
Type: article
Abstract: Redox flow batteries (RFBs) have emerged as a transformative technology for large‐scale energy storage, with growing research interest in developing cost‐effective and durable systems. Here, we present a capacity recoverable RFB system that utilizes low‐cost titanium/cerium species‐Ti‐Ce RFBs. A mixed‐electrolyte design suppresses ion crossover, achieving the average energy efficiency of 86.02% at 30mA cm −2 . Moreover, owing to the few side reaction and unique active ion complex structure with negative or neutral charge, the capacity of Ti‐Ce RFBs after attenuation can be almost completely recovered by directly mixing the electrolyte. Remarkably, exceptional long‐term stability over 3721 cycles (1886 h) at 50 mA cm −2 with average coulombic efficiency of 99.09% can be achieved by recovery regulation of mixing the electrolytes after attenuation. This design offers a simple but practical strategy to make Ti‐Ce RFBs as a promising candidate for long‐duration energy storage.
Source: ChemSusChem
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Funders: Double Thousand Plan of Jiangxi Province, National Natural Science Foundation of China, Natural Science Foundation of Jiangxi Province, Natural Science Foundation of Shandong Province, University of Science and Technology of China, National Key Research and Development Program of China, Science and Technology Major Project of Guangxi
OpenAlex ID: W7154089430