Document and Entity Information - USD ($)	11 Months Ended
	Dec. 31, 2021	Apr. 13, 2022
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Registrant Name	PERCEPTION CAPITAL CORP. II
Entity Central Index Key	0001844149
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity File Number	001-40976
Entity Incorporation, State or Country Code	E9
Entity Tax Identification Number	98-1578608
Entity Address, Address Line One	315 Lake Street East
Entity Address, Address Line Two	Suite 301
Entity Address, City or Town	Wayzata
Entity Address, State or Province	MN
Entity Address, Postal Zip Code	55391
City Area Code	952
Local Phone Number	456-5300
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Document Annual Report	true
Document Transition Report	false
ICFR Auditor Attestation Flag	false
Entity Public Float	$ 227,930,000
Auditor Name	Marcum LLP
Auditor Location	Tampa, FL
Auditor Firm ID	688
Class A Ordinary Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		23,000,000
Title of 12(b) Security	Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant
Trading Symbol	PCCTU
Security Exchange Name	NASDAQ
Class B Ordinary Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		5,750,000
Units, Each Consisting of One Class A Ordinary Share and One-half of One Redeemable Warrant
Document Information [Line Items]
Title of 12(b) Security	Class A ordinary shares, par value $0.0001 per share
Trading Symbol	PCCT
Security Exchange Name	NASDAQ
Redeemable Warrants, Each whole Warrant Exercisable for One Class A Ordinary Share at an Exercise Price of $11.50
Document Information [Line Items]
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50
Trading Symbol	PCCTW
Security Exchange Name	NASDAQ