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Pledged deposits (Details)			1 Months Ended																								12 Months Ended
	Mar. 05, 2021 USD ($)	Mar. 05, 2021 CNY (¥)	Jun. 30, 2021 USD ($)	Jun. 30, 2021 CNY (¥)	May 31, 2021 USD ($)	May 31, 2021 CNY (¥)	Apr. 30, 2021 USD ($)	Apr. 30, 2021 CNY (¥)	Mar. 31, 2021 USD ($)	Mar. 31, 2021 CNY (¥)	Oct. 31, 2020 USD ($)	Oct. 31, 2020 CNY (¥)	Jul. 31, 2020 USD ($)	Jul. 31, 2020 CNY (¥)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 CNY (¥)	May 31, 2020 USD ($)	May 31, 2020 CNY (¥)	Mar. 20, 2020 USD ($)	Mar. 20, 2020 CNY (¥)	Feb. 29, 2020 USD ($)	Feb. 29, 2020 CNY (¥)	Nov. 30, 2019 USD ($)	Nov. 30, 2019 CNY (¥)	Oct. 31, 2019 USD ($)	Oct. 31, 2019 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CNY (¥)	Sep. 30, 2021 USD ($)	Sep. 17, 2021 USD ($)	Sep. 17, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)	Oct. 31, 2020 CNY (¥)	Aug. 31, 2020 USD ($)	Aug. 31, 2020 CNY (¥)	Jul. 31, 2020 CNY (¥)	Jun. 30, 2020 CNY (¥)	Mar. 20, 2020 CNY (¥)	Feb. 29, 2020 CNY (¥)	Nov. 30, 2019 CNY (¥)	Nov. 30, 2007 USD ($)
Pledged deposits (Details) [Line Items]
Material purchase cost																											$ 5,874					¥ 38,346						¥ 1,932,947
Payments for legal settlements											$ 600,000	¥ 3,635,192
Liquidated damages | $																													$ 159,000												$ 561,174
Suzhou Security [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																							$ 21,672	¥ 139,713
Service expenses amount																							21,547	138,908
Interest																							125	¥ 805
Bank deposits																							$ 20,000.00																	¥ 150,000
Frozen by bank																											5,062					33,048
Cangzhou Huibang [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																			$ 310,000	¥ 2,029,594
Interest																			14,804	¥ 96,647
Bank deposits																											400,000					2,650,000
Frozen by bank																											18,518					120,898
Material purchase cost																			$ 300,000								300,000					1,932,947
Dongguan Shanshan [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																					$ 700,000	¥ 4,434,209
Bank deposits											600,000										$ 700,000												¥ 3,365,192						¥ 4,434,209
Frozen by bank																											55,230					360,576
Settlement amount													$ 600,000	¥ 3,635,192
Payments for legal settlements	$ 260,393	¥ 1,700,000	$ 32,088	¥ 209,487	$ 76,586	¥ 500,000	$ 76,586	¥ 500,000	$ 76,586	¥ 500,000
Payments | ¥		¥ 1,700,000
Nanjing Jinlong [Member]
Pledged deposits (Details) [Line Items]
Total sought amount															$ 125,443	¥ 822,000
Bank deposits															125,443																						¥ 822,000
Frozen by bank																											16					107
Material purchase cost																											125,443					822,000
Xi'an Anpu [Member]
Pledged deposits (Details) [Line Items]
Total sought amount															129,270	843,954
Equipment cost															117,636	¥ 768,000
Liquidated damages															$ 11,634																						¥ 75,954
Employees compensation, description															the request of Xi’an Anpu for property preservation, the Court of Dalian Economic and Technology Development Zone ordered to freeze CBAK Power’s bank deposits $0.1 million (RMB843,954) for a period to May 11, 2021. As of December 31, 2020, $98,284 (RMB641,656) was frozen by bank. The property preservation was released on February 25, 2021 upon CBAK Power settlement.	the request of Xi’an Anpu for property preservation, the Court of Dalian Economic and Technology Development Zone ordered to freeze CBAK Power’s bank deposits $0.1 million (RMB843,954) for a period to May 11, 2021. As of December 31, 2020, $98,284 (RMB641,656) was frozen by bank. The property preservation was released on February 25, 2021 upon CBAK Power settlement.
Tianjin Changyuan[Member]
Pledged deposits (Details) [Line Items]
Total sought amount																	$ 13,040	¥ 85,136
Interest																	874	5,707
Bank deposits													$ 13,041																							¥ 85,136
Frozen by bank																											13,041					85,136
Material cost																	$ 12,166	¥ 79,429
Jiuzhao [Member]
Pledged deposits (Details) [Line Items]
Total sought amount											900,000	6,000,000
Interest											19,871	129,732
Bank deposits																														$ 900,000	¥ 6,000,000
Material cost											$ 900,000	¥ 5,870,267
Chongqing Zhongrun [Member]
Pledged deposits (Details) [Line Items]
Total sought amount																									$ 400,000	¥ 2,484,948
Interest																									13,370	87,288
Bank deposits																																		$ 200,000	¥ 1,249,836
Frozen by bank																											2,224					14,521
Material purchase cost																											200,000					¥ 1,104,007
Payments																											$ 198,144	¥ 1,293,600
Material cost																									$ 400,000	¥ 2,397,660

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