International Graphite

Exceptional Battery Test Results Show Springdale Concentrate is Ideal for Premium Li-Ion Battery Anode

International Graphite Limited (International Graphite) (ASX: IG6) is pleased to report exceptional results from purification and electrochemical testwork on graphite concentrates generated from the Company’s 100% owned Springdale Graphite Project, in Western Australia (Springdale).


Highlights

  • Purification testwork on micronised and spheroidised Springdale concentrates exceeds the purity requirements of major lithium-ion (Li-Ion) batteries.
  • The optimised processing conditions using a chemical non-hydrofluoric acid (HF) method achieved results ranging from 99.96% LOI to 99.97% LOI.
  • Electrochemical tests were conducted on an uncoated purified sample of Springdale graphite concentrate which showed exceptional battery charging and discharging capacity.
The graphite concentrate micronising, spheroidising and purification test program was conducted in Germany by industry specialists ProGraphite GmbH (ProGraphite). The electrochemical test work was also conducted in Germany, under ProGraphite’s supervision, by a specialist graphite battery testing group.

The graphite concentrate tested came from reserve samples produced from previous beneficiation testwork using drill core samples from Springdale1. Purification testwork involved the application of a modified caustic soda roast process at lower temperature than previously applied and with a simplified number of stages.

Optimised tests achieved results ranging from 99.96% Loss On Ignition (LOI) to 99.97% LOI, thereby exceeding the industry standard purity grade of 99.95% and also meeting all the element-specific requirements of major Li-Ion battery and electric vehicle manufacturers (refer to Table 1). There is considerable scope to further optimise these results.

Electrochemical testwork on the uncoated purified sample of Springdale graphite concentrate achieved near theoretical-specific capacity for a graphite anode in Li-ion batteries of 372 mAh/g.

Battery stress testing over 46 charging / discharging cycles showed Springdale graphite concentrate has very high stability and durability, with the 46th cycle giving a reversible capacity of 368 mAh/g. Stress testing over longer cycles will be conducted in the next stage of battery testwork.

International Graphite Technical Director David Pass said, “The purification results demonstrate the potential for an optimised and simplified purification process to be used as an alternative to the traditional industry standard HF method.

“The electrochemical results are highly encouraging as a first phase sighter test program. These results will inform the optimisation of micronisation, spheroidisation and purification testwork and flowsheet development for our planned battery anode facilities.

To do that, we will be using ~115kg of Springdale graphite concentrate that was produced by the bulk concentrate testwork program undertaken in the second half of 2023.”

Table 1 - 26 Element ICP analysis of purified Springdale graphite concentrate sample

This announcement has been authorised for release by the Board of Directors of International Graphite Limited.


Click here for the full ASX Release

This article includes content from International Graphite, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

IG6:AU
International Graphite

International Graphite Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

The Conversation (0)
International Graphite

Share Purchase Plan Offer Booklet

On 24 April 2024, International Graphite Limited (ACN 624 579 326) (IG6 or the Company) announced that it has received firm commitments for a placement of 24,000,000 fully paid ordinary shares in the Company (Shares) at an issue price of $0.125 per Share to sophisticated, institutional and professional investors, successfully raising $3,000,000 (Placement).

Keep reading...Show less
International Graphite

Successful $3.0M Placement and launch of Share Purchase Plan Offer

International Graphite Limited (ASX: IG6) (the Company or International Graphite) has received firm commitments for a placement of 24.0M new shares to sophisticated and professional investors at an issue price of $0.125 per new share successfully raising $3.0M (before costs) (Placement).

Keep reading...Show less
International Graphite

International Graphite Limited (ASX: IG6) – Trading Halt

Description

The securities of International Graphite Limited (‘IG6’) will be placed in trading halt at the request of IG6, pending it releasing an announcement. Unless ASX decides otherwise, the securities will remain in trading halt until the earlier of the commencement of normal trading on Wednesday, 24 April 2024 or when the announcement is released to the market.

Keep reading...Show less
International Graphite

WA Government Awards $6.5 Million to Australia’s First Downstream Graphite Plant

International Graphite Limited (ASX: IG6) is delighted to announce it has received an additional $6.5 million grant from the Western Australian Government to establish Australia’s first downstream graphite processing plant. The award builds on two years of establishment work and brings the Company’s total funding from the State’s Collie Just Transition Program to $8.5 million.

Keep reading...Show less
Altech Batteries

Altech – Launch of Share Purchase Plan

Altech Batteries Limited (Altech/the Company) (ASX: ATC and FRA: A3Y) is delighted to announce the opportunity for eligible shareholders of the Company to participate in an equity raising via a Share Purchase Plan (SPP) to raise up to $5 million.

Keep reading...Show less
International Graphite

International Graphite Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

Latest Press Releases

Related News

×