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v3.22.4

Significant accounting policies (Details) ¥ in Thousands, $ in Thousands |  |  |  |  |  |  | 12 Months Ended | 60 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 13, 2018 | Jan. 10, 2017 | Jan. 05, 2017 | Sep. 26, 2016 | Jul. 19, 2016 | Jan. 18, 2010 | Dec. 31, 2022 CNY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2022 CNY (¥) seat tranche | Dec. 31, 2022 USD ($) seat tranche | Dec. 31, 2012 | Aug. 31, 2010
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of board seats | tranche |  |  |  |  |  |  |  |  |  |  | 2 | 2 |  |
Synergy Ballard JVCo |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  |  |  | 90.00% |  |  | 10.00% | 10.00% | 10.00% | 10.00% |  |  |  |
Synergy Ballard JVCo | Synergy Ballard JVCo |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in joint venture |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |
Weichai Ballard JV |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in subsidiary | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Number of board seats |  |  |  |  |  |  |  |  |  |  | 5 | 5 |  |
Proportion of ownership interest in joint venture |  |  |  |  |  |  | 49.00% | 49.00% | 49.00% | 49.00% |  |  |  |
Expected contributions to acquire interests in joint venture | ¥ |  |  |  |  |  |  |  |  |  |  | ¥ 561,000 |  |  |
Contributions |  |  |  |  |  |  | ¥ 62,475 | $ 9,272 | ¥ 79,625 | $ 12,351 |  |  |  |
Weichai Ballard JV | Weichai Power |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in subsidiary | 51.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Number of board seats |  |  |  |  |  |  |  |  |  |  | 3 | 3 |  |
Expected contributions to acquire interests in joint venture |  |  |  |  |  |  |  |  |  |  | ¥ 539,000 | $ 79,369 |  |
Guangzhou Ballard Power Systems Co., Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in subsidiary |  | 100.00% |  |  |  |  | 100.00% | 100.00% | 100.00% | 100.00% |  |  |  |
Intellectual property acquired from Ballard Motive Solutions (notes 7 and 27) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 100.00% |  |  | 45.00% | 100.00% | 100.00% | 100.00% | 100.00% |  |  |  |
Additional interests acquired |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 7.00%
Intellectual property acquired from Ballard Motive Solutions (notes 7 and 27) | Dansk Industri Invest A/S |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 43.00% |  |  |  |  |  |  |  |  |  |  |
Ballard Hong Kong Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  |  |  | 100.00% |  | 100.00% | 100.00% | 100.00% | 100.00% |  |  |  |

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