BC News Express | LONGi launches double-sided double glass BC component industry process expected to accelerate

    In the past two years, distributed photovoltaics have accounted for nearly half of the newly installed capacity, and have

continued to develop at a high rate every year. The layout of distributed products is also a key business focus for component

factories. At the Shandong Distributed Photovoltaic Exhibition, Longi Green Energy released its first dual glass module based

on HPBC technology, with a focus on "moisture and heat resistance" performance, further subdividing the scene.

    During the communication between the conference venues, the product manager of Longi Green Energy also admitted that

this new product is not entirely a technological innovation, but the "moisture and heat resistance" function is an urgent

problem that specific customers need to solve. Last October, the company launched single glass BC components suitable for

industrial and commercial roofs, while this time the double glass components are more suitable for inclined installation of

cement roofs and wet and hot scenarios.

    During the exchange, Lv Yuan, President of Longi Green Energy Products and Solutions Center, revealed that there will be new BC products launched in the future. In terms of centralized scenarios, Lv Yuan told reporters from Caixin that he is currently conducting market research with clients and needs to further calculate the final revenue situation with them. The centralized scenario mainly adopts large-scale bidding methods, and the progress of promotion is determined by the market environment. He stated that in the future, there will be specific products available to centralized customers.

    The unique design of BC batteries allows the electrodes in both the emitter and base regions to be located on the back, achieving a completely unobstructed front without grid lines. This innovative feature makes it particularly suitable for applications in the field of Building Integrated Photovoltaics (BIPV) and in the household sector where price sensitivity is relatively low. Given its outstanding performance in these specific application scenarios, BC batteries demonstrate promising commercialization prospects.

History of BC Battery Development

    The development history of BC batteries can be traced back to the 1970s, when this type of battery was initially developed and mainly used in spotlight systems. Here are some key stages and historical milestones in the development of BC batteries:

    ·Technical exploration period (1975-1996): The technical concept of BC battery was proposed, and preliminary exploration

and research on this battery technology began.

    ·Initial industrialization period (1997-2010): During this stage, technology leaders such as SunPower began to push BC

battery technology towards initial industrialization and conducted related research and production work.

    ·R&D boom period (2011-2016): With the continuous development of photovoltaic technology and the increasing market

demand, more manufacturers and institutions began to enter the field of BC battery research and development, promoting

the further development and optimization of this technology.

    ·Technology Branching Period (2017 present): During this stage, BC battery technology gradually formed different process

routes and branching development directions. For example, different technological routes have emerged, such as the classic

BC battery process, POLO-IBC battery process (combined with TOPCon technology), and HBC battery process (combined with

HJT technology).

    Leading companies are entering the market, and the industrial process is expected to accelerate. Longi Green Energy Chairman Zhong Baozhong stated at the company's 2023 semi annual performance briefing that BC batteries have excellent power generation performance. With further breakthroughs in related technologies, BC batteries are expected to become the mainstream of crystalline silicon batteries in the next 5-6 years, including double-sided and single-sided batteries.