TDB_EXM 1979 - Phostech Lithium inc.

Fine Particulate Lithium Titanium Spinel - Li 4 Ti 5 O 12Preliminary Technical Data Sheet – EXM 1979CharacteristicsFormula Li 4 Ti 5 O 122. Particle Characterisation2.1 REMCAS-No.: 12031-95-7Molecular Weight:Colour:459.25 g/molwhiteSpecification1. Sample Purity1.1 X-Ray Powder Diffraction Pattern2.2 Typical Particle Size DistributionMeasuring Instrument:Philips X'Pert Pro, PW3376, CuK α -Strahlung (θ-θ),graphite mono-chromator1.2 Typical ICP-AnalysisTypical size of primary particles: ca. 200nm.d 10 :d 50 :ca. 0.6 µmca. 9 µmd 90 :d 100 :ca. 25 µmca. 50 µmLi:Ti:Fe:6.1 wt%51.5 wt%< 200 mg/kgLaser Diffraction:Mastersizer 2000, Malvern Instruments GmbH, inwater using ultrasonic fingerMeasuring Instrument:Perkin Elmer Optima 3300 DV1.3 Typical pH (2g in 100ml water)11,02.3 Typical Specific Surface Area (BET)10 m²/g2.4 Typical Powder DensitiesBulk density:Tap density:Press density (7.5kN):0.42 g/cm³0.65 g/cm³1.63 g/cm³

Electrochemical PerformancePackagingSpecific Capacity and Rate CapabilityMeasurement ConditionsHalf Cell Measurement against Li MetalElectrolyte: 1M LiPF 6 in EC/DMC (1/1)Voltage range: 1.0V – 2.0V vs. Li/Li +Loading: 2.1 mg/cm² Active Mass.Electrochemical cycling in CCVC mode.Specific Capacity (mAh/g)20018016014012010080604020C/10 - D/10C/D to C/20DC/D to C/20D00 20 40 60 80 100 120 140 160 180CyclesC/DDelithiation (D-Rate)Delithiation (total)Lithiation (C-Rate)Lithiation (total)Capacity retention at C/D rate: 160-170 mAh/gCapacity retention at 20D rate: > 150 mAh/gCapacity retention at 20C rate: ≥ 120 mAh/gPackaging: in sealed plastic bag. For biggerquantities in sealed plastic bags in metal drums.Residual Moisture: on requestBattery MaterialsDr. Michael HolzapfelOstenriederstrasse 15D-85368 MoosburgGermanyTel: +49-8761-82-314Fax: +49-8761-82-339e-mail: michael.holzapfel@sud-chemie.com