what role will CATL jelly state battery play in fu
Hello Yesa, on April 21, CATL (Ningde Times Co., Ltd.) released the Kuiyin Solid-State Battery at the Super Technology Day which has superior performance index than current lithium battery. Can you tell me what role is it on the battery industry to EV or other applications path to whole solid-state battery in large scale usage, and how the future solid-state battery will be evolved among the three routes of sulfides, oxides and polymers? Thanks.
Yes, I am happy to answer your questions:
The CATL Qilin (Kuiyin/Kirin) Condensed Battery: A Pivotal “Jelly-Like” Semi-Solid Bridge to Full Solid-State Dominance in EVs and Beyond
On April 21, 2026, at CATL’s Super Technology Day, the company unveiled the Qilin Condensed Battery—widely referred to in industry discussions as a “jelly-like half-solid” or condensed-state battery. This is not a true all-solid-state cell but a sophisticated semi-solid (solid-liquid hybrid or quasi-solid) design featuring a condensed electrolyte that minimizes liquid content while delivering record performance: 350 Wh/kg gravimetric energy density and 760 Wh/L volumetric density. Paired with an aerospace-grade titanium alloy casing, high-nickel cathode, and silicon-carbon anode, it promises up to 1,500 km range in executive sedans (or 1,000+ km in full-size SUVs), reduces pack weight by ~400 kg and volume by ~225 L versus equivalent LFP systems, and achieves fast charging while maintaining “no leakage of liquid and no flammability of liquid.” It has already completed flight verification on a 4-ton commercial aircraft, with expansion planned for heavier models, and CATL targets large-scale mass production within 2026—bolstered by existing orders from leading automakers.
This “jelly-like” semi-solid electrolyte—visually gel-like but engineered to form protective films under heat, blocking oxygen and combustion pathways—represents a pragmatic transitional technology. It retains much of the high ionic conductivity of liquid electrolytes while slashing safety risks and enabling higher energy density. Unlike conventional liquid Li-ion (typically 250–300 Wh/kg at pack level), it delivers immediate, deployable gains without the full manufacturing and interface hurdles of pure solid-state cells. CATL’s move consolidates its ~50% global market share in Q1 2026 by offering a multi-chemistry portfolio (including Shenxing fast-charge LFP, sodium-ion, and now this condensed hybrid) that addresses diverse needs from mass-market EVs to premium and even aviation applications.
Immediate Role in the EV Industry and Broader Applications
In the EV sector, the condensed battery’s impact is transformative in the near term. By slashing vehicle weight and battery volume, it improves efficiency, handling, and interior space—critical for executive sedans and SUVs where range anxiety and premium positioning matter. A 400 kg weight reduction directly boosts range and lowers energy consumption, while the smaller 225 L volume frees up design flexibility or allows larger packs without compromising vehicle dynamics. Safety upgrades are equally compelling: the semi-solid electrolyte eliminates liquid leakage and flammability, and the composite current collector melts quickly in extremes to prevent thermal runaway. This “no liquid, no fire” profile positions it as a safer alternative for high-energy applications, potentially accelerating regulatory approvals and consumer adoption in safety-conscious markets.
Production readiness is key. Unlike lab-bound full solid-state prototypes, CATL’s condensed cells leverage existing Li-ion manufacturing lines with minimal retooling, enabling 2026 mass production. This creates a cost-competitive path (though premium pricing initially) and allows rapid scaling for OEM orders. For automakers, it means competitive differentiation today: longer range, faster charging, and lighter vehicles without waiting for 2030-era all-solid tech. Beyond passenger EVs, the aviation validation signals expansion into electric aircraft (eVTOLs and beyond 8-ton models), where weight and safety are paramount. Other applications could include commercial fleets, marine, or even high-performance stationary storage where energy density and fire resistance justify premiums. Overall, it strengthens CATL’s leadership by proving condensed tech in real-world high-stakes environments, pressuring competitors like BYD to accelerate their own hybrid or solid efforts.
The Path to Large-Scale Full Solid-State Usage
Critically, the jelly-like condensed battery serves as a strategic bridge to true all-solid-state batteries (ASSBs). Industry experts view semi-solid/hybrid designs as the essential stepping stone: they de-risk manufacturing, validate supply chains, and gather real-world performance data while full solid electrolytes mature. CATL has explicitly framed condensed tech as a “transitional ace” before all-solid-state commercialization. By 2026, scaling condensed cells builds expertise in high-nickel/silicon interfaces, dry-room processes, and thin-film electrolytes—skills directly transferable to ASSBs. It also generates revenue and customer confidence to fund further R&D, while pilot aircraft use provides extreme-condition testing (vibration, temperature swings) that lab cells cannot replicate.
Full solid-state mass adoption faces hurdles: interface stability (dendrite formation, high resistance), moisture sensitivity, high costs, and scalable production. Semi-solid cells address these incrementally—retaining some liquid-like conductivity for better kinetics while minimizing flammability. CATL’s roadmap aligns with broader industry timelines: semi-solid/condensed in volume now (2026), small-series ASSB pilots in 2027, and true mass production around 2030 targeting 500 Wh/kg+. This phased approach lowers risk for OEMs, ensures regulatory frameworks (China’s upcoming solid-state standards) evolve alongside tech, and builds a robust ecosystem of materials suppliers. In essence, the condensed battery accelerates the industry’s learning curve, making large-scale ASSB deployment feasible by proving safety, manufacturability, and economics in real vehicles first.
Future Solid-State Batteries: Competition Among Sulfides, Oxides, and Polymers
Looking ahead, full solid-state batteries will likely draw from three primary electrolyte routes—sulfides, oxides, and polymers—each with distinct strengths suited to different applications. No single chemistry will dominate universally; hybrids and application-specific choices will prevail, but sulfides appear poised as the performance frontrunner for high-energy EV use.
Sulfide electrolytes (e.g., LGPS-type glass-ceramics) offer the highest room-temperature ionic conductivity (~6.8–10 mS/cm), rivaling liquids and enabling fast charging, high-rate capability, and compatibility with lithium-metal or silicon anodes for 400–500+ Wh/kg cells. They deform easily for low interfacial resistance. However, they suffer from poor air/moisture stability (releasing toxic H₂S) and narrow electrochemical windows, requiring strict dry processing and protective coatings. CATL’s recent patents focus heavily here, using fluorine-containing lithium salts to form self-healing LiF protective layers that mitigate instability—positioning sulfides as CATL’s likely path for next-gen ASSBs.
Oxide electrolytes (e.g., LLZO garnets) excel in chemical/electrochemical stability and wide voltage windows (up to 6 V), making them safer against lithium metal and less moisture-sensitive. They suit high-voltage cathodes and long-cycle-life applications. Drawbacks include lower conductivity (0.1–1 mS/cm), brittle interfaces requiring high-temperature sintering (>1000°C), and high interfacial resistance—complicating scalable manufacturing and adding cost. Oxides may dominate in safety-critical or stationary uses but lag for ultra-high-density EVs.
Polymer electrolytes (e.g., PEO-based) are highly scalable via solution processing or UV curing, flexible for conformal interfaces, and compatible with existing Li-ion lines—ideal for cost-sensitive, flexible formats. Conductivity is moderate (0.35–6.8 mS/cm) and often requires elevated temperatures or plasticizers, limiting room-temp performance. They shine in semi-solid hybrids (like the current condensed battery) but struggle for pure ASSB energy density.
Industry roadmaps favor composites and hybrids to combine advantages: sulfide-polymer blends for conductivity + flexibility, or oxide coatings for stability. For EVs, sulfides (or sulfide-dominant hybrids) are expected to lead due to conductivity enabling 1,000+ km ranges and 5–10C charging. Oxides may prevail in aviation or grid storage for inherent safety, while polymers support lower-cost or niche flexible batteries. CATL’s multi-route strategy—evident in condensed hybrids today and sulfide patents for tomorrow—positions it to adapt across segments. Challenges remain universal: dendrite suppression, scalable dry processing, and cost parity with Li-ion (currently 3–5x higher). By 2030–2035, ASSBs could capture significant EV market share if these are solved, with semi-solid paving the way.
In summary, CATL’s jelly-like condensed battery is more than an incremental upgrade—it is a commercially viable accelerator for the solid-state revolution. It delivers immediate EV and aviation benefits while de-risking the leap to full solid-state at scale. As sulfides, oxides, and polymers compete and converge, this transitional tech ensures the industry doesn’t stall. With mass production imminent and a clear evolutionary path, it cements CATL’s role in reshaping energy storage, potentially making 1,500 km EVs the new normal by decade’s end. The future of batteries is solid—starting with a clever jelly-like bridge.
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