It is just a generic battery you can buy e.g. in South Korea (for about $10 to $15) and some company got the license from Haribo to slap their branding on it through some crowdfunding project.
It doesn't seem like it was Haribo that started it off, but rather the company HK DC GLOBAL got a license to use the Haribo branding to market the powerbank through this crowdfund:
