The midline of the photovoltaic industry chain consists of photovoltaic cells and photovoltaic cell modules. Processing silicon wafers into solar cells is the most important step to achieve photovoltaic conversion. This link is a dual industry of capital and technology intensive, requiring companies to keep up with the latest battery manufacturing technology to improve battery efficiency.

        The average conversion efficiency of the mass production of conventional structure aluminum single-field and polycrystalline silicon cells has reached 19.8%. Moreover, when the utilization rate of monocrystalline silicon and polycrystalline silicon cells using PERC cell technology reaches 18.5%, their efficiency will continue to increase to 20.5% and 19%, and there is still a lot of room for technological progress. N-type crystalline silicon battery technology has begun to enter small batch production, and technological progress is relatively fast, including N-type crystalline silicon batteries using PERT technology, heterojunction batteries such as HIT, and reverse contact batteries such as IBC will be developed. One of the main directions in the future.

        In terms of the market share of each technology, BSF batteries still account for most of the current market share, accounting for about 87.8% in 2016. With the development of new technologies, their share will decrease year by year. PERC battery is currently the largest high-performance battery. The battery market share will reach about 10% in 2016 and is expected to reach 20% or higher by 2018. In the future, when the manufacturer's production capacity is gradually released as different products are finalized, the market share of PERC batteries will increase year by year, and it is expected to reach 46% by 2025. Emerging high-performance batteries, such as double-sided N-type monocrystalline batteries, reverse contact batteries (IBC) and heterojunction batteries (HIT), will also gradually increase their market share.