Elcora Advanced Materials Announces the Building and Advanced Testing of Industry Standard 18650 Lithium Ion Batteries
- Written by EQS Asia Business News
DGAP-News: Elcora Advanced Materials / Key word(s): Miscellaneous
2016-10-20 / 15:10
The issuer is solely responsible for the content of this announcement.
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Halifax, Nova Scotia--(Newsfile Corp. - October 20, 2016) - ELCORA ADVANCED
MATERIALS CORP. (TSXV: ERA) (FSE: ELM), (the 'Company' or 'Elcora'), is
pleased to announce that it is starting full cell testing and qualification
of its graphite material in industry standard 18650 lithium ion batteries
(LIBs). After successfully demonstrating that Elcora thermally purified
graphite could meet all of the standard requirements for LIBs using coin
cells with lithium reference electrodes, Elcora has contracted with
Coulometrics, LLC, to complete full cell assembly and final qualification
of their graphite anode material. Coulometrics, LLC is a leading advanced
energy consulting company with full LIB assembly and state-of-the-art
testing capabilities.
''Elcora's graphite has performed well in half-cell testing, demonstrated
good manufacturing characteristics with respect to electrode coating and
adhesion, and has been successfully wound into high quality cylindrical
18650 LIBs, the same format used by automakers such as Tesla. We have now
started full cell characterization testing and we are starting accelerated
life testing on the finished cells. This will provide the necessary
comprehensive information that will allow battery companies to use Elcora's
graphite in the near future,' says Dr. Edward Buiel, President and CEO of
Coulometrics, LLC.
The battery assembly process to produce industry standard 18650s including,
electrode coating, electrode calendaring, cell winding, and cell assembly
are shown in Figure 1, 2, and 3 below. The properties of the individual
Elcora graphite anode electrodes are shown in Table 1 below. These
electrodes were used to assemble 10 18650 LIBs for testing and
qualification purposes. The results show that Elcora graphite can be use to
produce high quality electrodes with correct coating weight and with
respectable densities of 1.5 g/cm3.
Table 1: Anode Characteristics
Active Total Ave Foil Foil Coating Active Single Active
Mater. Wt Thick Wt Thick Weight Weight Sided Density
Load
Anode ID [%] [g] [mm] [g] [mm] [g] [g] mg/cm2 g/cm3
EW16-0117-001 93.1 10.219 0.132 3.635 0.012 6.584 6.130 9.413 1.465
EW16-0117-002 93.1 10.145 0.126 3.635 0.012 6.510 6.061 9.307 1.523
EW16-0117-003 93.1 10.155 0.132 3.635 0.012 6.520 6.070 9.321 1.451
EW16-0117-004 93.1 10.177 0.121 3.635 0.012 6.542 6.090 9.352 1.595
EW16-0117-005 93.1 10.189 0.122 3.635 0.012 6.554 6.102 9.370 1.586
EW16-0117-006 93.1 10.207 0.125 3.635 0.012 6.572 6.118 9.395 1.545
EW16-0117-007 93.1 10.065 0.126 3.635 0.012 6.430 5.986 9.192 1.501
EW16-0117-008 93.1 10.094 0.125 3.635 0.012 6.459 6.013 9.234 1.527
EW16-0117-009 93.1 10.112 0.121 3.635 0.012 6.477 6.030 9.260 1.588
EW16-0117-010 93.1 10.104 0.124 3.635 0.012 6.469 6.023 9.248 1.543
Average 93.1 10.147 0.125 3.635 0.012 6.512 6.062 9.309 1.532
[image: [image:
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Figure 1: Elcoragraphite coating (left) and roll pressing (right) for
electrode productionprior to full 18650 lithium ion battery assembly.
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The appropriate sized Elcora graphite anodes were combined with a standard
Coulometrics NMC cathode and wound into the cell winding (Figure 2) and the
final battery (Figure 3).
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http://orders.newsfilecorp.com/files/2409/23125_a1476965950700_44.jpg] http://orders.newsfilecorp.com/files/2409/23125_a1476965950903_16.jpg]
Figure 2: Rolled components of the 18650 lithium ion battery Figure 3: Completed 18650 battery
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The 18650 cells produced as a result of this process are being cycled
between 3.0 and 4.2V. An example of one of these cells is shown below in
Figure 4.
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Figure 4: Lithium ion battery voltage vs capacity relationships over
repeated cycles using Elcora graphite anodes.
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Initial cycle results show that the capacity and efficiency of the cells
are within normal parameters for good quality LIBs (see Figures 5 and 6).
Dr. Buiel further commented that 'Although significantly more cycles need
to be completed, this level of performance and ease of use of Elcora
graphite in the cell assembly process is a very good indication that Elcora
processed graphite is very well suited for LIB applications. We plan to
continue to work with Elcora to ensure that any issue that may arise during
upcoming customer evaluations is addressed quickly.'
[image:
http://orders.newsfilecorp.com/files/2409/23125_a1476965951153_98.jpg]
Figure 5: Capacity change with usage is essentially flat showing that
Elcora anodes are stable with usage.
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Figure 6: Early cell efficiency results for Elcora cells that will later be
measured precisely with high precision coulometry (HPC) and compared with
high quality automotive cells.
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'This work is another positive step in Elcora's goal of producing top
quality lithium ion battery anodes using ecological process at a
competitive cost. It also confirms the anode performance for potential
clients.' said Troy Grant, Elcora's President and CEO.'
Information about the Company can be found at http://www.elcoracorp.com.
For further information, please contact: Troy Grant, Director, President
and CEO, Elcora Advanced Materials Corp., T: +1 902 802-8847 F: +1 902
446-2001.
CAUTIONARY STATEMENT:
The TSX Venture Exchange does not accept responsibility for the adequacy or
accuracy of this release. No stock Exchange, securities commission or other
regulatory authority has approved or disapproved the information contained
herein. This News Release includes certain 'forward-looking statements'.
All statements other than statements of historical fact, included in this
release, including, without limitation, statements regarding potential
mineralization and reserves, exploration results, and future plans and
objectives of Elcora, are forward-looking statements that involve various
risks and uncertainties. There can be no assurance that such statements
will prove to be accurate and actual results and future events could differ
materially from those anticipated in such statements. Important factors
that could cause actual results to differ materially from Elcora's
expectations are exploration risks detailed herein and from time to time in
the filings made by Elcora with securities regulators.
Investors are cautioned that, except as disclosed in the filing statement
prepared in connection with the transaction, any information released or
received with respect to the transaction may not be accurate or complete
and should not be relied upon.
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the associated documents
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News Source: Newsfile
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2016-10-20 Dissemination of a Corporate News, transmitted by DGAP - a
service of EQS Group AG.
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Language: English
Company: Elcora Advanced Materials
Canada
ISIN: CA2844451039
End of News DGAP News Service Authors: EQS Asia Business News