Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2012	Sep. 10, 2015	Jun. 30, 2014
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Trading Symbol	ALPE
Entity Registrant Name	alpha-En Corp
Entity Central Index Key	0001023298
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	No
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 1,206,650
Entity Common Stock, Shares Outstanding		27,821,030