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Merck
CN

934666

Hard carbon

greener alternative

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

Synonym(s):

Hard carbon anode, Sodium-ion anode

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About This Item

NACRES:
NA.21
UNSPSC Code:
26111700

Key Documents

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grade

battery grade

material

copper substrate (current collector)

description

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

assay

≥98% (active material characteristic)

composition

Active material loading 10.21 mg/cm2 ± 5%

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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sheet size

10 μm , copper current collector, 45 μm , excluding current collector, 5 in. × 10 in.

size

5 in. × 10 in.

avg. part. size

5 μm (active material characteristic)

capacity

2.4 mAh/cm2±5 % (Areal), 290 mAh/g±5 % (Experimental Lithiation)

application(s)

battery manufacturing

greener alternative category

Enabling

Quality Level

100

Related Categories

General description

Hard carbon electrode sheet is an electrode film of activated carbon cast on copper. Hard carbon is a low-density material with extremely high microporosity. Standard electrode sheets are 5 inches x 10 inches (127 mm x 254 mm) and cast single-sided on 10 µm thick copper foil current collectors. The composition of the electrode film is 90% graphite, 5% poly(vinylidene fluoride) [PVDF] and 5% Super P. PVDF acts as binder due to its thermal and electrochemical stability and strong adhesive properties.
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Application

Our hard carbon electrode sheet is a ready-to-use anode for alkali metal ion batteries such as sodium ion batteries (SIBs), lithium ion batteries (LIBs), and potassium ion batteries. Hard carbon is the anode of choice for sodium-ion batteries, where the use of graphite as an anode in SIBs is inhibited by the inability of sodium ions to form a binary graphite intercalation compound. Hard carbon offers a low insertion/deinsertion potential (~0.1 V Na/Na+) ideal for achieving high voltages. With an experimental capacity of 240 mAh/g and areal capacity of 2.32 mAh/cm2, our electrodes demonstrate outstanding electrochemical performance.

Storage Class

13 - Non Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ9671
MKCX2714
MKCW0359

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Hard carbons for sodium-ion batteries: Structure, analysis, sustainability, and electrochemistry
Xinwei et al.
Materials Today, 23, 87-104 (2019)
High-capacity activated carbon anode material for lithium-ion batteries prepared from rice husk by a facile method
Kaifeng et al.
Diamond and Related Materials, 86, 139 - 145 (2018)

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