Technological breakthrough solves the battery life problem! Our country's companies are actively developing perovskite batteries

Our perovskite battery field has seen intensive breakthroughs.

On the morning of February 27, the A-share photovoltaic equipment sector surged significantly, with JunDa Co., Shuangliang Eco-Energy, and Yongzhen Co. hitting the daily limit. DiEr Laser, Chinalco Co., and *ST JinGang also led gains, rising 4.96%, 3.98%, and 2.69%, respectively.

Wuhan University Solves the Lifespan Problem of Perovskite Solar Cells

According to Wuhan University, on February 27, the journal Science published the latest research results from Professor Wang Zhiping’s team at the School of Physics and Technology. The paper introduces a “Atomic-Scale Interface Bonding” technology, utilizing atomic layer deposition to introduce a tunable hafnium oxide (HfOx) interlayer at critical interfaces inside the cell. This approach synchronizes the stability of hole and electron transport interfaces at the atomic level, successfully addressing the long-standing challenge of simultaneously improving efficiency and stability in perovskite solar cells.

The team’s p-i-n type perovskite solar cell achieved a power conversion efficiency of 27.1% (third-party verified at 26.6%), and after over 5,000 hours of operation under continuous sunlight at 85°C, it still maintained over 90% of its initial efficiency. Its high-temperature operational lifespan (T90) is 25 times longer than that of comparable devices. The atomic layer deposition technology used in this approach is highly compatible with large-area manufacturing processes, providing a key interface solution for the industrialization of perovskite photovoltaic technology.

Since the beginning of the year, China’s perovskite battery field has experienced intensive breakthroughs.

In February, a research team at the Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, developed a new tin oxide nanomaterial and in-situ constructed a 2D/3D perovskite heterojunction, which could make the commercialization of high-efficiency, stable perovskite photovoltaic modules feasible. In January, a team at Xiamen University developed a new molecular imprinting annealing method, offering a new approach to improve the stability of perovskite solar cells.

Perovskite materials are promising in the photovoltaic field due to their excellent optoelectronic properties, such as high absorption coefficient, long exciton diffusion length, high charge carrier mobility, and low exciton binding energy, making them a key future development direction.

According to a research report by CICC Securities, perovskites are a promising option for further improving the efficiency of photovoltaic modules. Perovskite modules perform well under low-light conditions, with some large-area modules exceeding 20% efficiency, comparable to crystalline silicon modules in actual power generation. Their lifespan issues have also been partially addressed. By 2026, leading manufacturers’ mass production plans for perovskite battery modules are expected to positively impact the industry, and cross-industry giants entering the perovskite track could reshape the photovoltaic market landscape.

Chinese Companies Actively Deploy Perovskite Batteries

Domestic photovoltaic companies are increasing investments in perovskite batteries. By October 2025, GCL System Integration Technology produced its first 2.76m² perovskite module, becoming the largest commercially produced perovskite module in the world. BOE built the world’s first perovskite BIPV application project. Trina Solar achieved significant breakthroughs in the efficiency of perovskite/P-type heterojunction (HJT) tandem cells.

According to Securities Times and Data Treasure, there are 32 concept stocks related to perovskite batteries in the A-share market, with several listed companies revealing their deployment plans for perovskite batteries on investor interaction platforms.

JunDa Co. stated that the company has been deeply involved in the photovoltaic sector for years and has proactively started R&D on perovskite tandem cells. Currently, small-area perovskite-TOPCon tandem cells have achieved a conversion efficiency of over 33.53%.

DiEr Laser indicated that its laser equipment is used in the production processes of TCO layers, oxides, and electrodes in perovskite solar cells. The company has received small batch orders and completed deliveries, maintaining a reserve of laser technology for perovskite applications.

Chinalco Co. said that its perovskite silicon tandem products are currently under development. Once successful, these products could be applied not only in conventional photovoltaic scenarios but also in new fields such as space.

In terms of funding, 12 stocks have received net financing inflows this month, with Jiejia Weichuang, Jinko Solar, and Longhua Technology each netting over 100 million yuan—specifically, 558 million yuan, 227 million yuan, and 107 million yuan, respectively.

(Source: Data Treasure)