Ronbay S740B Single-Crystal NCM Cathode

Ronbay S740B Single-Crystal NCM Cathode Material 1kg

SKU: S740B

$565.00

Ronbay S740B Single-Crystal NCM Cathode — single-crystal NCM with Ni/Co/Mn 50.15/20.26/19.79 mol%, D50 3.69 μm, tap density 1.82 g/cm³, S.S.A 0.78 m²/g.

Coin-cell testing at 0.1C, 3.0–4.4 V delivers 180.9 mAh/g with 88.56% first-cycle efficiency.

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Name: Ronbay S740B Single-Crystal NCM Cathode

Material Type: Single-Crystal Lithium Nickel Cobalt Manganese Oxide (NCM)

Product Code: S740B

Brand: Ronbay

Product Introduction:

The Ronbay S740B is a single-crystal lithium nickel cobalt manganese oxide (NCM) cathode material with Ni / Co / Mn molar ratio of 50.15 / 20.26 / 19.79. The material is supplied as a black powder with D50 3.69 μm, tap density 1.82 g/cm³, and specific surface area 0.78 m²/g. SEM confirms single-crystal microstructure, and XRD shows no impurity peaks.

Key Features:

Single-crystal NCM chemistry — Ni/Co/Mn 50.15/20.26/19.79 mol%
0.1C discharge capacity 180.9 mAh/g (3.0–4.4 V, coin cell)
First-cycle efficiency 88.56%
Particle size distribution — D10 2.12 μm / D50 3.69 μm / D90 6.01 μm
Tap density 1.82 g/cm³, apparent density 1.63 g/cm³, S.S.A 0.78 m²/g
Low surface lithium residues — LiOH 657 ppm, Li₂CO₃ 1329 ppm
Low moisture content 0.0232 wt%
XRD confirms phase purity with no impurity peaks; 100% passes 325 mesh sieve
Magnetic impurities (Fe+Cr+Zn) 19 ppb
RoHS compliant (EU standards)

Chemical Composition:

Element Result
Li (wt%) 7.35
Ni (mol%) 50.15
Co (mol%) 20.26
Mn (mol%) 19.79
Na (wt%) 0.0166
Zn (wt%) 0.0003
Cu (wt%) 0.0000
Ca (wt%) 0.0027
Mg (wt%) 0.0021
S (wt%) 0.0323
H₂O (wt%) 0.0232
CO₃²⁻ (ppm) 1329
OH⁻ (ppm) 657
pH 11.36
Magnetic Impurities Fe+Cr+Zn (ppb) 19

Physical Properties:

Property Result
Appearance Black powder, uniform color, no lumps, no impurities
Tap Density (g/cm³) 1.82
Apparent Density (g/cm³) 1.63
Specific Surface Area BET (m²/g) 0.78
D10 (μm) 2.12
D50 (μm) 3.69
D90 (μm) 6.01
Dmax (μm) 11.07
Micromorphology Single Crystal (by SEM)
Crystal Structure No impurity peak (by XRD)
Sieving (325 Mesh) 100% Pass
RoHS EU standards compliant

Electrochemical Performance (Coin Cell, 0.1C/0.1C, 3.0–4.4 V):

Parameter Result
First-Cycle Charge Capacity (mAh/g) 204.3
First-Cycle Discharge Capacity (mAh/g) 180.9
First-Cycle Efficiency (%) 88.56

Values measured by Xnergy. Typical values for reference; not guaranteed unless otherwise specified.

Storage Requirement:

Airproof, put in a cool and dry place.

Note: Specifications listed above are typical and for reference only. Actual electrochemical performance depends on the specific cell architecture, electrolyte formulation, binder/conductive-additive composition, coating thickness, calendering parameters, formation protocol, and testing conditions. For complete lithium-ion battery electrode preparation workflows, see also Xnergy’s related products in the Cathode Materials category, Anode Materials category, Binders category, and Current Collectors category. For electrode-coating equipment, see the Coating equipment category including Automatic Film Coater XN-VC-300, XN-VCH-300, and Slot-Die Coating System XN-SDC. For electrode calendering, see the Calendering equipment category. For mixing and drying, see Planetary Vacuum Mixer and Three-Door Vacuum Drying Oven (XN-DVO-3). For other single-crystal NCM cathodes, see also Xnergy’s Zhenhua E-Chem Single-Crystal NCM523 Cathode, BTR M2-S Single-Crystal Ni83 NCM Cathode, and EASPRING ME-93SC Single-Crystal NCM Cathode.

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