Beyond Metal-Air Chemistry: Coupling n-/p-Type Organic Redox Chemistry Toward Sustainable Sub-Zero-Temperature All-Polymer Seawater Batteries.

ABSTRACT: Developing high-efficiency durable rechargeable seawater battery (RSB) that directly harnesses natural seawater for sustainable energy storage is an attractive yet challenging task. Rather than use traditional metal-air chemistry, for the first time it proposes a coupled n-type/p-type redox chemistry to establish a new all-polymer RSB (APRSB) with high energy efficiency and long cycle lifespan even at subzero temperature. The strategy involves rational design of n-type redox polyimide (NDIP) and p-type redox radical polymer (RRP). By using flexible triamine linker to crosslink naphthalenetetracarboxylic dianhydride (NTCDA) molecules to tune aggregate structures, the newly-produced NDIP attains consistent high storage capacity for multiple cations (Na⁺/K⁺/Mg²⁺

SUBMITTER: Lu Y 

PROVIDER: S-EPMC12561187 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature