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934690

Sigma-Aldrich

Graphite

greener alternative

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

Synonym(s):

Carbon anode, Graphite anode

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About This Item

UNSPSC Code:
26111700
NACRES:
NA.21

material

copper substrate (current collector)

Quality Level

grade

battery grade

description

Description/Nominal Voltage: 0.1 V vs Li/Li+

Assay

≥98% (active material characteristic)

composition

Active material loading 6.5 mg/cm2 ± 5%

greener alternative product characteristics

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

sustainability

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size

10 μm , copper current collector
5 in. × 10 in.
60 μm , excluding current collector

particle size

15-20 μm (active material characteristic)

capacity

≥370 mAh/g (Nominal Discharge)

application(s)

battery manufacturing

greener alternative category

General description

Graphite electrode sheet is a ready-to-use graphite anode film, cast single-sided on 10 µm thick copper foil current collectors. The sheets are 5 inches x 10 inches (127 mm x 254 mm). The composition is 90% graphite, 5% Poly(vinylidene fluoride) [PVDF] and 5% Carbon Black. PVDF acts as binder due to its thermal and electrochemical stability.
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Application

Our graphite electrode sheet is ready-to-use as an anode in rechargeable batteries, especially lithium-ion batteries and potassium-ion batteries. The primary advantages of graphite electrodes are a low insertion/deinsertion potential (0.1V vs. Li/Li+) and a high capacity, exceeding 340 mAh/g, coupled with stable cycling performance from the lack of dendrite formation. Our graphite electrodes have a high active material loading (90%) and achieve high areal capacity (2.4 mAh/cm2), allowing them to operate even at high charge currents like 5C. These electrodes offer excellent, consistent performance making them useful for research as a benchmark and counter electrode for experimental studies of cathode and electrolyte optimization as well as mechanistic in operando studies.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2


Certificates of Analysis (COA)

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Recent progress of electrode materials cooperated with potassium bis(fluorosulfonyl)imide?containing electrolyte for K-ion batteries
Xie, Junpeng, et al.
Materials Today, 6, 100035-100035 (2020)
Graphite as anode materials: Fundamental mechanism, recent progress and advances
Zhang Hao, et al
Energy Storage Materials, 36, 147-170 (2021)
Graphite as anode materials: Fundamental mechanism, recent progress and advances
Zhang H, et al.
Energy Storage Materials, 36, 147-170 (2021)

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