Single-Crystal LiMn2O4 (LMO) Powder for Li-Ion Battery Cathode, 50 g/bottle, CLIBCSCLMO
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Single-crystal LiMn2O4 represents an advanced morphological evolution of the classic cubic spinel (Fd3m) lithium manganese oxide cathode. Traditionally synthesized as polycrystalline aggregates, restructuring LMO into well-developed, micron-sized single crystals (typically possessing truncated octahedral shapes) fundamentally mitigates structural degradation while preserving the inherent safety, cost, and high-rate advantages of manganese-based chemistries.
By shifting from a polycrystalline matrix to a monolithic single-crystal structure, the performance profile shifts dramatically: (1) Elimination of Grain Boundaries: Single-crystal particles lack internal grain boundaries. Without boundaries to exploit, the anisotropic stress from Jahn-Teller distortion cannot cause intergranular microcracking, preserving mechanical particle cohesion over extended cycling. (2) Minimized Specific Surface Area: Single crystals feature a significantly lower specific surface area (BET) compared to porous polycrystalline aggregates. This drastically reduces the total contact area between the active manganese atoms and the electrolyte, minimizing the site density available for HF acid attack and subsequent Mn^{2+} dissolution. (3) Thermodynamically Stable Facets: Controlled single-crystal synthesis allows for the preferential exposure of highly stable crystal facets—specifically the {111} planes. The {111} facets exhibit a lower surface energy and are vastly more resistant to manganese dissolution than the high-energy {110} or {100} planes.
| Part Number |
CLIBCSCLMO (C-LIB-C-SCLMO) |
| Chemical Composition |
Li: 4.2%, Mn: 59.4% |
| Particle Size Distribution |
D10 = 4.02 um; D50 = 9.27 um; D90 = 19.01 um |
| Tap Density | 2.13 g/cm3 |
| Specific Area | 0.514 m2/g |
| Water Level | <320 ppm |
| First Discharging Capacity |
~99 mAh/g |
| First Columbic Efficiency |
≤92.0% Testing Conditions: (1) Electrode composition: SCLMO: SP: KB: PVDF = 92: 2.5: 2.5: 3, aluminum foil (12 um) as current collector; (2) Electrode compaction density: 2.7 g/cm3. (3) Anode: Li metal; (4) Electrolyte: 1 M LiPF6 in EC:DMC:DEC = 1:1:1 with 1% VC; (5) Testing window: 3.0-4.2 V, 0.5 C
|
| Package Grade |
50 g/bottle |
Notes: (1) Please store the SCLMO 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:
- General Synthesis of Single-Crystal Spinel Cathodes with the Tailored Orientation of Exposed Crystal Planes for Advanced Lithium-Ion Batteries, J. Am. Chem. Soc., 2024, 146, 33845–33856.
- P. Hou, et al. General Synthesis of Single-Crystal Spinel Cathodes with the Tailored Orientation of Exposed Crystal Planes for Advanced Lithium-Ion Batteries, Small, 2023, 19, 2000997.
