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Ampcera® Lithium Niobium Oxide, LiNbO3 (1wt%) coated NMC 811 Cathode Powder, 10g

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Qty (Each) Price (Each)
1 - 9 $ 175.00
10 - 19 $ 143.50
20 - 20+ $ 113.75

Ampcera® LiNbO3 (1 wt%)  coated NMC 811 Cathode Powder, 11-15um D50, Cathode Material, 10g

Product Benefit: LiNbOcoated NMC 811 (or NCM 811) Cathode Powder provides superior high rate capability of cathode when being used with solid state electrolyte materials.  According to a 2019 paper published by the M. Stanley Whittingham lab, the coating of LiNbOon NMC 811 cathode not only supplied a protective surface coating but also optimized the electrochemical behavior of NMC 811 cathode material. 

Product Number (SKU#): PO0185

CAS#: NMC 811(1333-86-4), LiNbO3 (12031-63-9)

Package Size: 10g

Supplier: Ampcera Inc.

Specifications (Custom made cathode materials with LiNbO3 coating can be provided by Ampcera Inc. upon request. Please contact us for a quote.)

LiNbOcoating: 1 wt% of NMC 811

Appearance: Ash black color powder

Molecular Formula: LiNi0.8Co0.10Mn0.10O2 (Ni:Mn:Co = 8:1:1), NMC 811

Material Type: Polycrystalline

Chemical Name or Material: Lithium Nickel Manganese Cobalt Oxide

Particle size distribution:

  • D10: ~ 5 µm
  • D50: 11 - 15 µm
  • D90: 35 µm

Tap density: ~ 2.2 g/cm3 (typical value 2.45 g/cm3)

BET Specific Surface Area: 0.15 - 0.35 m2/g

LiNbOcoating thickness (TEM measurement): 5~10 nm

Chemical Composition and Impurities (metals only)

Elements

Unit

Specification

Typical Value

Ni+Mn+Co

wt%

58.0-60.5

59.3

Li

wt%

7.0-7.6

7.35

Fe

wt%

<0.0050

0.0007

Cu

wt%

<0.0020

0.0001

Ca

wt%

<0.0100

0.0010

Na

wt%

<0.0300

0.0056

 

Electrochemical Performance of NMC 811 powder

Coulombic Efficiency (0.1C) >86%

First Discharge Capacity (button half open cell, 4.2 - 3.0V)

at 0.1C, 178 mAh/g, First discharge efficiency: ~ 85%

at 0.5C, 172 mAh/g

at 1.0C, 165 mAh/g

Capacity remaining

97% after 100 cycles

96% after 200 cycles

94% after 300 cycles

According to a recent study, LiNbO3-coated NMC 811 cathode displays the higher discharge capacity of 203 mAh g−1 at 0.1 C and a rate performance of 136.8 mAh g−1 at 5 C at 60 °C than NMC 811 and reported oxide electrodes.

LiNbO3 (1 wt%) coated NMC 811 Cathode Powder

Reference: 

  1. LiNbO3-coated LiNi0.8Co0.1Mn0.1O2 cathode with high discharge capacity and rate performance for all-solid-state lithium battery, Journal of Energy Chemistry, Volume 40, January 2020, Pages 39-45 
  2. Li-Nb-O coating/substitution enhances the electrochemical performance of LiNi0.8Mn0.1Co0.1O2 (NMC 811) Cathode, Fengxia Xin, Fengxia Xin, Hui Zhou, Xiaobo Chen, Mateusz Zuba, Natasha Chernova, Guangwen Zhou, M. Stanley Whittingham,  ACS Appl. Mater. Interfaces 2019, 11, 38, 34889-34894
  3. Interfacial modification for high-power solid-state lithium batteries, Solid State Ionics, Volume 179, Issues 27–32, 30 September 2008, Pages 1333-1337