钙钛矿电池概念资金流入榜 | 代码 | 简称 | 今日涨跌幅 | 今日换手率 | 主力资金流量（万 | 主力资金净流入比率 | | --- | --- | --- | --- | --- | --- | | | | （%） | （%） | 元） | （%） | | 600438 | 通威股 份 | 10.00 | 3.22 | 63572.01 | 22.69 | | 601012 | 隆基绿 能 | 6.46 | 2.94 | 51686.33 | 14.34 | | 002865 | 钧达股 份 | 10.00 | 10.25 | 20014.30 | 21.00 | | 002218 | 拓日新 能 | 10.06 | 4.94 | 13702.45 | 54.80 | | 002623 | 亚玛顿 | 10.01 | 23.35 | 12146.31 | 11.84 | | 002008 | 大族激 光 | 3.14 | 2.99 | 8434.15 | 12.00 | | 300118 | 东方日 | 6.21 | 11.99 | 7922.72 | 6.83 | | | 升 | | | | | | ...

Group 1 - The BC battery concept sector rose by 4.13%, leading the market with 40 stocks increasing, including Dongcai Technology, Junda Co., and Tongwei Co., which hit the daily limit [1] - Notable gainers in the BC battery sector included Laplace, Trina Solar, and Chipone, with increases of 9.12%, 8.10%, and 7.91% respectively [1] - The sector saw a net inflow of 2.09 billion yuan, with 32 stocks receiving net inflows, and 8 stocks exceeding 50 million yuan in net inflow, led by Tongwei Co. with 636 million yuan [1] Group 2 - The top three stocks by net inflow ratio were Tongwei Co. at 22.69%, Junda Co. at 21.00%, and Longi Green Energy at 14.34% [2] - The trading volume for Tongwei Co. was 635.72 million yuan, with a daily increase of 10.00% and a turnover rate of 3.22% [2] - Other significant stocks included Longi Green Energy with a 6.46% increase and a turnover rate of 2.94%, and Junda Co. with a 10.00% increase and a turnover rate of 10.25% [2][3] Group 3 - The BC battery concept sector's performance was contrasted with other sectors, such as the shipbuilding sector which fell by 0.45% and the biomass power generation sector which saw minimal change [1] - Stocks like Guangxin Materials and Haitan Co. experienced declines of 2.39% and 0.58% respectively, indicating some volatility within the market [1][4] - The overall market sentiment was positive for the BC battery sector, reflecting strong investor interest and capital inflows [1]

| 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | BC电池 | 4.13 | 中船系 | -0.45 | | 硅能源 | 4.02 | 生物质能发电 | 0.03 | | PCB概念 | 3.86 | 足球概念 | 0.09 | | 铜缆高速连接 | 3.60 | 幽门螺杆菌概念 | 0.15 | | 低辐射玻璃(Low-E) | 3.55 | 冰雪产业 | 0.18 | | TOPCON电池 | 3.52 | 乳业 | 0.18 | | 钙钛矿电池 | 3.40 | 重组蛋白 | 0.19 | | AI PC | 3.32 | 转基因 | 0.20 | | HJT电池 | 3.22 | 可控核聚变 | 0.23 | | AI手机 | 3.22 | 芬太尼 | 0.24 | 资金面上看，今日HJT电池概念板块获主力资金净流入18.09亿元，其中，30股获主力资金净流入，7股 主力资金净流入超5000万元，净流入资金居首的是通威股份，今日主力资金净流入6.36亿元，净流入资 金居前的还有隆基绿能、拓日新能、TCL中环等，主力资金分别净流入 ...

截至7月8日收盘，TOPCON电池概念上涨3.52%，位居概念板块涨幅第6，板块内，69股上涨，亿晶光 电、弘元绿能、钧达股份等涨停，仕净科技、拉普拉斯、天合光能等涨幅居前，分别上涨11.10%、 9.12%、8.10%。跌幅居前的有林洋能源、*ST沐邦、海天股份等，分别下跌1.61%、0.91%、0.58%。 | 600732 | 爱旭股 | 5.33 | 4.98 | 8789.96 | 7.70 | | --- | --- | --- | --- | --- | --- | | | 份 | | | | | | 002008 | 大族激 | 3.14 | 2.99 | 8434.15 | 12.00 | | | 光 | | | | | | 002459 | 晶澳科 | 5.71 | 3.88 | 8344.30 | 6.07 | | | 技 | | | | | | 300118 | 东方日 升 | 6.21 | 11.99 | 7922.72 | 6.83 | | 300433 | 蓝思科 技 | 1.79 | 1.47 | 5015.41 | 2.94 | | 300316 | 晶盛机 电 | 4.90 ...

Group 1 - Longi Green Energy has made significant progress in the research of new organic self-assembled molecular materials (SAM) and silicon-perovskite tandem devices, achieving an open-circuit voltage close to 2.0V and a certified efficiency of 34.6% for silicon-perovskite tandem solar cells [1] - The research results were published in the international academic journal "Nature" on July 7, 2025, highlighting the importance of the new SAM material development and further efficiency enhancement of silicon-perovskite tandem cells [1] - The company previously collaborated with the Changchun Institute of Applied Chemistry to develop a novel organic self-assembled molecule with excellent charge carrier transport capabilities and structural stability, leading to significant advancements in efficiency and stability for perovskite solar cells [1] Group 2 - Longi's tandem team has published three top academic articles, showcasing the creation of world record efficiencies of 33.9%, 34.2%, and 34.6% through innovative strategies and materials [2] - The collaboration between Longi Green Energy and academic institutions like Suzhou University and the Changchun Institute of Applied Chemistry demonstrates a successful model of industry-academia cooperation aimed at addressing critical issues in tandem solar cell development [2] - The core materials and processes developed include the upper interface double-layer staggered passivation strategy, D-A type high-stability SAM materials, and asymmetric SAM hole transport materials [2]

Core Viewpoint - The BC battery sector has seen a collective surge of over 4% as of July 8, with several stocks, including Tongwei Co., Ltd. and Junda Co., Ltd., reaching their daily limit up [1] Industry Summary - BC batteries, or back-contact batteries, integrate both positive and negative metal contacts on the back, allowing for a design that absorbs more sunlight and offers higher efficiency, particularly suitable for distributed photovoltaic and commercial rooftop applications [1] - By April 2025, the mass production efficiency of BC batteries is expected to exceed 27%, with a theoretical efficiency limit of 29.1% [1] - Recent discussions in the photovoltaic industry have focused on "anti-involution," with the Ministry of Industry and Information Technology emphasizing the need for lawful and orderly competition, which is expected to enhance market expectations for the healthy development of the photovoltaic industry [1] - The BC battery technology is positioned as a high-efficiency, high-value photovoltaic technology, offering better performance compared to traditional P-type and TOPCon batteries, and is anticipated to play a significant role in the industry's transformation and upgrade [1] Company Summary - Longi Green Energy (601012) has a BC production capacity of 30GW HPBC (High-efficiency Passivated Back Contact) battery project, which is already in mass production [2] - Junda Co., Ltd. has established an experimental line for BC products based on N-type technology, moving towards pilot testing and mass production of N-type products [2] - Tongwei Co., Ltd. has a comprehensive layout in various technology routes, including TOPCon, HJT, BC batteries, and perovskite/silicon tandem batteries, with ongoing breakthroughs in N-type batteries [2] - Dongcai Technology (601208) focuses on technological innovation and explores differentiated photovoltaic product development strategies, with products already applied to BC batteries [2] - Jiejia Weichuang (300724) is developing XBC battery testing and sorting equipment to address issues related to the positioning accuracy of battery grid lines on the back [3] - Foster (603806) is the largest supplier of packaging materials for Longi and Aiko's BC batteries [4] - Aiko Co., Ltd. (600732) has launched a new generation of N-type back-contact ABC battery technology components and photovoltaic energy solutions [4] - TCL Zhonghuan (002129) is enhancing its product lineup by transforming TOPCon standard component production lines and establishing a 2GW BC component production line [4]

Group 1 - The photovoltaic ETF fund (159863.SZ) has increased by 5.08%, with major components such as Sungrow Power (up 8.98%), Longi Green Energy (up 6.08%), Tongwei Co. (up 10.00%), Daqo New Energy (up 14.84%), and TBEA Co. (up 3.02%) [1] - There are rumors that silicon material does not have a guiding price and cannot be sold below their full cost, with policies reiterating "supply-side expectations rising" [1] - The photovoltaic industry is currently undergoing a clearing process that can be categorized into financial, policy, and technical clearings, with expectations of challenges in domestic demand in Q3 and an anticipated increase in polysilicon production in July [1] Group 2 - Zhongyi Securities' strategy team notes that the current market environment is similar to the end of 2014, with investors having accumulated profit effects in the industry, and policy expectations stabilizing [1] - China Post Securities highlights that the photovoltaic industry has been officially named for "involution-style" competition, with leading photovoltaic glass companies planning to collectively reduce production by 30% starting in July [2] - The Ministry of Industry and Information Technology has signaled stronger regulatory measures, requiring companies to report cost prices and planning to impose heavy penalties on low-price sales, indicating an escalation in industry governance [2]

Core Viewpoint - The photovoltaic sector is experiencing a significant rebound, with the leading photovoltaic ETF (516290) surging over 4% in trading volume, indicating a potential bottom reversal in the market [1] Group 1: Market Performance - The photovoltaic leading ETF (516290) saw a price increase of 4.47%, reaching 0.444, with a trading volume of 3,842 million [1] - Major component stocks of the ETF, such as Daqo New Energy, Tongwei Co., and Sungrow Power Supply, reported substantial gains, with Daqo New Energy rising over 14% and Tongwei Co. hitting the daily limit [1] Group 2: Industry Insights - In May, the newly installed capacity for photovoltaic systems reached 93 GW, marking a year-on-year increase of 388%, with a historical high of nearly 100 GW in new installations driven by a rush to install [2] - The photovoltaic industry is addressing supply-side excess, with expectations for specific measures to be implemented, which could benefit segments like silicon materials and BC battery efficiency improvements [3] Group 3: Future Outlook - The photovoltaic sector is anticipated to undergo a fundamental recovery, with positive sentiment expected to shift as new technologies and government initiatives promote market clearing [4] - The photovoltaic leading ETF (516290) is highlighted as a low-fee option in the market, with management and custody fees significantly lower than the industry average [4]

Core Viewpoint - A new round of anti-"involution" competition has been initiated, affecting both traditional industries like steel and cement, as well as emerging sectors such as photovoltaics, new energy vehicles, and lithium batteries. The central government has signaled a commitment to address low-price disorderly competition and promote the orderly exit of backward production capacity [1][4][6]. Group 1: Government Initiatives - The Central Economic Committee's recent meeting emphasized the need to govern low-price disorderly competition legally and systematically, aiming to enhance product quality and facilitate the exit of outdated production capacity [1][6]. - The Ministry of Industry and Information Technology (MIIT) has held discussions with photovoltaic industry leaders to address the challenges posed by low-price competition and to promote high-quality development within the sector [11][12]. - The revised Anti-Unfair Competition Law, effective from October 15, 2025, aims to provide legal tools to combat "involution" competition, particularly targeting platform operators who enforce below-cost pricing [9][10]. Group 2: Industry Responses - Various industry associations, including those in steel, cement, and battery sectors, have called for a collective response against "involution" competition, advocating for quality over price in market competition [3][16][19]. - The photovoltaic industry is experiencing significant pressure, with upstream silicon material prices plummeting, leading to a collective financial strain across the entire supply chain [12][14]. - Industry leaders have highlighted the necessity for consolidation and stricter control of production capacity to overcome the challenges posed by "involution" competition, suggesting that cooperation is essential for long-term sustainability [14][19]. Group 3: Economic Context - The current "involution" phenomenon is attributed to two main factors: a cyclical economic adjustment leading to heightened price sensitivity among consumers, and external pressures from a de-globalizing environment that compel companies to compete primarily on price [7][8]. - The imbalance between supply and demand in various sectors, particularly in the steel industry, has resulted in increased production despite declining consumption, exacerbating the "involution" issue [18][19].

Group 1: New Energy Vehicle Industry - The China Securities New Energy Vehicle Industry Index (930997) increased by 0.39%, with key stocks like Defu Technology (301511) rising by 3.57% and Huayou Cobalt (603799) by 2.92% [1] - The National Development and Reform Commission and other departments announced plans to establish over 100,000 high-power charging facilities by the end of 2027, aiming for improved service quality and technology upgrades [1] - CITIC Securities forecasts that domestic electric vehicle sales will reach 16.52 million units in 2025, with a year-on-year growth rate of 15-22% expected in 2026 [2] Group 2: Photovoltaic Industry - The China Securities Photovoltaic Industry Index (931151) rose by 0.15%, with major stocks like Sungrow Power (300274) increasing by 1.62% [4] - The top ten weighted stocks in the photovoltaic index account for 55.39% of the total index, indicating a concentrated market [9] Group 3: Automotive Parts Industry - The China Securities Automotive Parts Theme Index (931230) increased by 0.29%, with stocks like Zhengmei Machinery (601717) rising by 2.51% [4] - The top ten weighted stocks in the automotive parts index represent 41.05% of the total index, highlighting key players in the sector [9] Group 4: New Materials Industry - The China Securities New Materials Theme Index (H30597) rose by 0.50%, with stocks like Yake Technology (002409) increasing by 4.58% [6] - The top ten weighted stocks in the new materials index account for 51.27% of the total index, showcasing significant contributors to the industry [10]