MG is launching its first PHEV with semi-solid-state batteries in 2027
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- MG confirmed its SolidCore semi-solid-state battery tech will power at least three plug-in hybrid SUVs, with the MG ZS Plug-in Hybrid+ launching first in 2027 followed by the MG HS and MG S9.
- MG earlier this year claimed it became the first automaker globally to mass-produce semi-solid-state batteries, after the MG4 EV went on sale in China last year as the industry's first mass-produced EV with the tech.
- MG's semi-solid-state batteries are designed to pair with its new PHEV+ system, available with a 1.1L or 1.5L turbocharged hybrid engine, delivering higher energy conversion efficiency and faster power response than conventional liquid-electrolyte batteries.
- The PHEV+ hybrid transmission features an EV Mode that maintains engine thermal efficiency above 40% across approximately 90% of driving conditions and achieves up to 90% electric drive efficiency, per MG.
- MG plans to bring semi-solid-state battery tech to Europe by end of 2026, starting with the all-electric MG4 Urban, before rolling out the PHEV lineup in 2027.
- MG also revealed plans to launch Navigate On Autopilot in late 2027 as part of its updated MG Pilot ADAS system to support highway driving.
Why it matters: MG claims to be the first automaker globally to mass-produce semi-solid-state batteries, and now it's extending that lead from EVs into mass-market PHEV SUVs — with three named models (ZS, HS, S9) queued up starting 2027. The new PHEV+ powertrain is rated for 40% thermal efficiency across 90% of driving conditions, a concrete efficiency benchmark MG is staking its hybrid competitiveness on.
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