When it comes to HIT batteries, there's a company that's got the attention of everyone in the industry and is inextricably linked to HIT batteries. Before giving a detailed account of the state of the art and opportunities for HIT batteries, let's talk about the 'company' story .
After several runs by Longji and Jingke, PERC battery conversion rate increased significantly in the second half of 2017, with the current record high of 23.26%. It is estimated that in the next 18 years, more companies will actively expand their PERC batteries.
The 'parity internet' requires the photovoltaic industry to continuously improve the product conversion rate and reduce the manufacturing cost. Up to now, the efficiency and cost reduction benefits brought by PERC technology have been widely recognized. However, the iteration of technology will not be stagnant. Just as the Chinese Academy of Sciences Wang Wenjing, research director and researcher at the Institute, said in a keynote speech at the PVEC2017 2017: "The PERC polysilicon price / performance problem will affect its industrialization. The N-type PERT battery is not cost-competitive with the P-type PERC Battery competition, in terms of efficiency, double-sided power generation and other aspects of the HIT battery squeeze, the next wind is difficult to survive. If PERC battery failure in the future, it will certainly be in the light fades. 'PERC, HIT battery is undoubtedly the most A new technology that attracts people's attention.
When it comes to HIT batteries, there's a company that's got the attention of everyone in the industry and is inextricably linked to HIT batteries. Before giving a detailed account of the current state of technological development and opportunities for HIT batteries, let's talk about the 'company' story .
In September, Matsushita Electric Industrial Co., Ltd. (Matsushita Electric Industrial Co., Ltd.) has started producing HIT solar cells in Tesla's Gigafactory 2 in Buffalo, New York, according to foreign media reports. The Gigafactory 2 is a 1.2 million-square-foot facility in Buffalo A short drive south of the center, on 88 acres, it was once the site of a steel mill - RiverBend.
Since 2014, Panasonic, Tesla, SolarCity, and Silevo love and hate disputes over HIT batteries have evolved to September this year. The core of the issue is a hybrid HIT (Heterojunction with Heterojunction with intrinsic thin layer Intrinsic Thinfilm solar cells, up to 26.3% up to date, and HIT cells up to 26.63% with HIT technology over IBC technology.
Figure 1 Tesla Gigafactory 2
The Story of Buffalo Speaking from 2014, SolarCity, a US solar manufacturer, bought Silevo in 2014 and plans to build a 1GW HIT battery plant in the United States. After its first public announcement in June 2014, SolarCity / Silevo nameplate battery production time postponed several times as the fab's activities stop, SolarCity / Silevo any news also stopped until July 2016, Tesla announced plans to acquire SolarCity and reached with the Panasonic Manufacturing cooperation, more specific sources pointed out that the Buffalo production line refers to the 1GW line of SolarCity, and Panasonic will assist in the technical integration.However, until today, this 1GW production has yet to delay.
In September, according to foreign media reports, Matsushita has started producing its HIT solar cells in Tesla Gigafactory 2 in Buffalo, New York, and Tesla expects Gigafactory 2 to reach 1GW by 2019. Some analysts said that the time delay may be related to the Tesla Gigafactory 2's footprint and shortage of manpower resources, but also with the SUNY Polytechnic Institute some commercial cooperation and other minor factors.
Gigafactory 2 December 2016 The factory behind the fence is covered with snow 'Photo: Austin Carr'
According to Tesla's current plan, Gigafactory 1 will be responsible for producing the Tesla battery, the battery pack for Tesla Energywall and Powerpacks, and Gigafactory 2 will be responsible for manufacturing Tesla solar roof tiles and solar energy Module.Another year 2019, Tesla's Gigafactory 2 to achieve the goal of 1GW on time, or once again delay the time limit, subject to time research.
Relatively speaking, Matsushita's technology reserves for HIT battery can not be said to be quite mature, but it is indeed the first line in the world with the most abundant technical and talent reserve. The main reason for the 1GW's planned delay in Gigafactory 2 should be relatively relative Due to equipment and manpower, HIT battery manufacturing process and equipment exactly where?
