Back Contact, cross Back contact), HPBC, TBC (Tunneling oxide passivated contact Back Contact, Tunnel oxide passivation contact), ABC, HBC (Hetero Junction Back contact).
Among them, IBC is a relatively pure single-sided battery technology, which can be superimposed with P-type, N-type, perovskite and other technologies, such as the superposition of N-type HJT technology is called "HBC" battery,
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