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934739

Sigma-Aldrich

Sodium manganese oxide

greener alternative

electrode sheet, aluminum substrate, size 5 in. × 10 in.

Sinonimo/i:

Manganese oxide cathode, Sodium-ion battery cathode

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About This Item

Formula empirica (notazione di Hill):
Na0.44MnO2
Peso molecolare:
97.05
Codice UNSPSC:
26111700
NACRES:
NA.21

Materiali

aluminum substrate

Livello qualitativo

Grado

battery grade

Descrizione

2.5 V vs Na/Na+
Application: Battery Manufacturing

Saggio

≥98%

Forma fisica

sheet

Composizione

Active material loading 8.6 mg/cm2 ± 5%

Caratteristiche più verdi

Design for Energy Efficiency
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sustainability

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Misura

5 in. × 10 in.

Spessore

16 μm , aluminum current collector
25-50 μm
72-80 μm , excluding current collector

Dimensione particelle

1-2 μm (active material characteristic)

Capacità

0.90 mAh/cm2±5 % (Areal capacity)

applicazioni

battery manufacturing

Categoria alternativa più verde

Descrizione generale

Sodium manganese oxide (Na0.44MnO2) electrode sheet is a ready-to-use cathode for sodium-ion battery research. The film is 5 inches x 10 inches (127 mm x 254 mm) and cast single-sided on a 16 µm thick aluminum foil current collector. The composition is 90% sodium manganese oxide (Na0.44MnO2), 5% Poly(vinylidene fluoride) [PVDF] and 5% carbon black. The active material is tunnel-type sodium manganese oxide, which offers fast sodium ionic conductivity and high chemical stability. PVDF acts as binder due to its thermal and electrochemical stability and carbon black boosts the electronic conductivity.
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Applicazioni

The primary application of our sodium manganese oxide (Na0.44MnO2) electrode sheet is as a cathode for sodium-ion battery research. Manganese-based compounds are widely investigated as cathode materials for rechargeable Na-ion batteries and, in particular, tunnel-type sodium manganese oxide (Na0.44MnO2) is a promising cathode material due to its high capacity, low cost, and non-toxicity. In addition, its unique tunnel structure facilitates excellent cycle and rate performance. For example, our sodium manganese oxide showed a large capacity (experimentally 110 mAh g−1 at 0.1C), even at fast charge rates (80 mAh g-1 at 5C, 72%). In addition, Na0.44MnO2 shows excellent stability with a variety of electrolytes including NaClO4 and NaPF6-based organic electrolytes.

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


Certificati d'analisi (COA)

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Electrode Materials for Sodium-Ion Batteries
Kim H, et al.
Advanced Energy Materials, 6 (2016)
High-Performance Na0.44MnO2 Slabs for Sodium-Ion Batteries Obtained through Urea-Based Solution Combustion Synthesis
Ferrara C, et al.
Lithium-Ion Batteries, 4 (2018)
Xingde Xiang et al.
Advanced materials (Deerfield Beach, Fla.), 27(36), 5343-5364 (2015-08-15)
Sodium-ion batteries (SIBs) receive significant attention for electrochemical energy storage and conversion owing to their wide availability and the low cost of Na resources. However, SIBs face challenges of low specific energy, short cycling life, and insufficient specific power, owing

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