Interests in Subsidiaries - Summary of Information About Principal Subsidiaries (Details)	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
MD South Tenements Pty Ltd
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Name of entity	MD South Tenements Pty Ltd
Place of business / country of incorporation	Australia
Functional Currency	AUD
Ownership interest held of the group	100.00%	100.00%
Principal activities	Graphite exploration
Novonix Battery Technology Services Inc
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Name of entity	Novonix Battery Technology Solutions, Inc.
Place of business / country of incorporation	Canada
Functional Currency	CAN
Ownership interest held of the group	100.00%	100.00%
Principal activities	Battery technology services.
Novonix Corp
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Name of entity	Novonix Corp
Place of business / country of incorporation	USA
Functional Currency	USD
Ownership interest held of the group	100.00%	100.00%
Principal activities	Investment
Novonix Anode Materials LLC
Disclosure Of Significant Investments In Subsidiaries [Line Items]
Name of entity	Novonix Anode Materials, LLC
Place of business / country of incorporation	USA
Functional Currency	USD
Ownership interest held of the group	100.00%	100.00%
Principal activities	Battery materials development

The country in which a subsidiary of the entity is incorporated. [Refer: Subsidiaries [member]]

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The description of the currency of the primary economic environment in which the entity operates.

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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The name of a subsidiary. [Refer: Subsidiaries [member]]

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The proportion of ownership interests in a subsidiary held by non-controlling interests. [Refer: Subsidiaries [member]; Non-controlling interests]

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Principal activities of business of subsidiary.

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