Free-standing MoSx-based dual functional polysulfide catalyzer and immobilizer for high performance Li–S batteries

The simultaneous application of 1T & 2H MoS 2 @CWs@CP as an efficient catalyzer and MoS 3 @PPy@CP as an adsorber for LiPSs significantly catalyzes the redox reaction and suppresses the shuttle effect, leading to a high specific capacity and stable long-term cycling of Li–S batteries.