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Key Documents

934739

Sigma-Aldrich

Sodium manganese oxide

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

Sinônimo(s):

Manganese oxide cathode, Sodium-ion battery cathode

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About This Item

Fórmula empírica (Notação de Hill):
Na0.44MnO2
Peso molecular:
97.05
Código UNSPSC:
26111700
NACRES:
NA.21

Materiais

aluminum substrate

Nível de qualidade

grau

battery grade

descrição

2.5 V vs Na/Na+
Application: Battery Manufacturing

Ensaio

≥98%

forma

sheet

composição

Active material loading 8.6 mg/cm2 ± 5%

características do produto alternativo mais ecológico

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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tamanho

5 in. × 10 in.

espessura

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

tamanho de partícula

1-2 μm (active material characteristic)

capacidade

0.90 mAh/cm2±5 % (Areal capacity)

aplicação(ões)

battery manufacturing

categoria alternativa mais ecológica

Descrição geral

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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Aplicação

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.

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


Certificados de análise (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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