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Cover Page
 12 Months Ended
Dec. 31, 2022
Document Information [Line Items]  
Document Type S-1
Amendment Flag false
Entity Registrant Name AMPRIUS TECHNOLOGIES, INC.
Entity Central Index Key 0001899287
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 98-1591811
Entity Address, Address Line One 1180 Page Avenue
Entity Address, City or Town Fremont
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94538
City Area Code 800
Local Phone Number 425-8803
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Primary SIC Number 3690
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One 1180 Page Avenue
Entity Address, City or Town Fremont
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94538
City Area Code 800
Local Phone Number 425-8803
Contact Personnel Name Dr. Kang Sun