Single-Crystal LiNi0.8Co0.1Mn0.1O2 (SC-NCM811) Powder with LLZTO Coating for Li-Ion Battery Cathode, 100-500 g/bottle, CLIBCSCNCM811LLZTO

Coating LiNi0.8Co0.1Mn0.1O2 (NCM811) powder with a garnet-type solid electrolyte—specifically tantalum-doped lithium lanthanum zirconate (Li6.75La3Zr1.75Ta0.25O}12, or LLZTO)—represents an advanced materials engineering strategy designed to stabilize high-nickel layered oxide cathodes. While NCM811 delivers exceptionally high discharge capacities (~ 200 mAh/g), its practical deployment is plagued by severe interfacial instability, microcracking from anisotropic lattice volume changes during deep delithiation, and parasitic exothermic reactions with electrolytes at high voltages (~ 4.3 V). An ion-conducting LLZTO surface modification directly targets these degradation pathways.

The key advantages of LLZTO coating on single-crystal NCM811 powder are: (1) Suppression of Cathode-Electrolyte Interphase (CEI) Thickening: Uncoated NCM811 aggressively reacts with liquid or solid electrolytes, scavenging protons and triggering structural degradation from a layered phase to an inactive rock-salt phase. The dense LLZTO coating passivates the active particle surface against direct parasitic attack. (2) Mitigation of Transition Metal Dissolution: High-voltage cycling accelerates Ni^{2+}/Ni^{3+} reduction and transition metal dissolution into the electrolyte, which subsequently migrates and poisons the anode SEI. LLZTO acts as a rigid ceramic diffusion barrier. (3) Alleviation of Space-Charge Impedance: In all-solid-state batteries (ASSBs), direct contact between oxide cathodes and solid electrolytes (especially sulfides or polymers) creates chemical potential mismatches and space-charge layers that impede Li+ migration. LLZTO serves as a chemically compatible buffer layer.

Part Number	CLIBCSCNCM811LLZTO (C-LIB-CSNCM811-LLZTO)
Chemical Composition	Li: 7.2 wt% Ni: 83.2 mol%, Co: 10.85 mol%, Mn: 5.95 mol% (ICP)
Impurity Content	Fe: <30 ppm;  Na: <20 ppm;  Cu: <1 ppm
Particle Size Distribution	D10 = 1.60 um;  D50 =3.50 um;   D90 = 6.00 um
Tap Density	2.28 g/cm3
Specific Area	0.78 m2/g
Water Level	<260 ppm
First Discharging Capacity	~205 mAh/g (0.1 C, 3.0-4.3 V) NCM811|Celgard2500|Li，electrolyte: 30ul 1M LiPF6 in EC:DEC=1:1 vol% Y1 and Y2 are pristine SC-NCM811, A,B,C,D,E are all LLZTO-coated SC-NCM811 at different conditions.
First Columbic Efficiency	88.5 %
Package Grade	100 g, 200 g, and 500 g/bottle

Notes: (1) Please store the SC-NCM811@LLZTO powder in a dry area (glovebox is preferred); (2) The battery powder is highly recommended to be dried at 80-100°C in a vacuum oven for 6-12 h before use. 

References: 

1. T. Jiang, et al. Improved High-Potential Property of Ni-Rich LiNi0.8Co0.1Mn0.1O2 with a Garnet Ceramic LLZTO Surface Modification in Li-Ion Batteries, ACS Appl. Energy Mater. (2022) 5 (1): 305–315.
2. J. Wang, et al., Long-Cycle Lithium Batteries with LiNi0.8Co0.1Mn0.1O2 Cathodes above 4.5V Enabled by Uniform Coating of Nanosized Garnet Electrolytes, Chinese Phys. Lett., 2024, 41 078201