Li-Ion Battery Technology Patent Highlights – Free Version
Multi-layer solid electrolyte architectures with halide-oxide-sulfide composite membranes, magnesium citrate-derived porous carbon scaffolds for silicon anodes, and dual-doping strategies for lithium manganese iron phosphate cathodes
Dual lithium supplement (Li5FeO4 with Al2O3 coating + Li2NiO2) for LFP
Retention: 94.3% @1000 cyc
Benchmarking Experiments in Patents
ⓘ
These benchmarks are drawn directly from experiments reported in the patents, where an inventive example incorporating the claimed innovation is compared against a comparative example that omits it while keeping the cell configuration, chemistry, and test conditions otherwise equivalent.
Composite Solid Electrolyte Cycle Life (SAIC Qingtao)
90.6%
72.6%
Three-layer halide-LLZTO-sulfide composite (1 : 6 : 6 thickness ratio)vs.
no LLZTO barrier layer • capacity retention after 100 cycles at 1 C, 25°C
Low State-of-Charge Power Capability (Apple)
6%
15%
Bismuth metal additions to silicon-carbon anodesvs.
no bismuth addition • SoC at shutdown under pulse loads (lower is better)
Dual Lithium Supplement Cycle Life (CATL)
94.3%
85.9%
Dual additive system (Li5FeO4 with Al2O3 coating + Li2NiO2)vs.
Li5FeO4 only • 1,000 cycles at 1 C, 25°C, LFP cathodes
Hybrid architecture strategy spatially separating functional requirements: garnet ceramic separator for lithium metal dendrite suppression, combined with liquid- or sulfide-containing catholyte for cathode interfacial contact. Anode-free manufacturing approach eliminating pre-deposited lithium metal through in-situ formation. Multi-layer surface stabilization methodology addressing garnet contamination and high-voltage degradation pathways. Scalable ceramic processing innovations targeting automotive-grade production economics through accelerated sintering cycles and defect-free tape casting. Protective cathode coating strategies for high-nickel materials enabling extended cycle life at elevated temperatures and voltages.
Key synergies between R&D concepts: Sequential surface treatment strategy addressing contamination removal and interfacial stabilization | Cathode degradation suppression compatible with alternative catholyte architectures | Sintering process development | Avoidance of Li metal handling in production
