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RECORD 3: PRIOR ART REFERENCE B — FICTIONAL REFERENCE B (EXCERPT)
Grant Date: 2022-04-18
Assignee: Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.
Title: Doped Garnet Ceramic Electrolyte and Low-Temperature Processing
Classification: H01M 10/0525, H01B 1/08

1. CLAIMS AND TEACHINGS
Discloses garnet electrolytes of formula Li_7 La_3 Zr_2 O_12 doped with trivalent elements selected from Ga, Al, Sc, and In.
In Example 4, single-doping of scandium at Sc = 0.15 yields Li_7.15 La_3 Zr_1.85 Sc_0.15 O_12.
Reported results: Sintered at 1,150°C. Total ionic conductivity at 25°C is reported as 0.68 mS/cm. The grain boundary resistance dominates total impedance (R_gb = 142 Ohm*cm²).
Critique/Difference: Lacks pentavalent co-doping (no Ta or Nb). Fails to reach ionic conductivity above 1.0 mS/cm. Does not teach liquid-phase lithium borate sintering aids or grain boundary impedance suppression below 20 Ohm*cm².