Chinese researchers report 700 Wh/kg lithium-metal battery
A team from Nankai University and the Shanghai Institute of Space Power-Sources has developed a hydrofluorocarbon electrolyte enabling lithium-metal cells to operate at temperatures as low as -70 C.
Longi launches integrated solar-plus-storage platform strategy
China-based solar manufacturer Longi is shifting from a multi-vendor system design to a unified solar-plus-storage architecture built around in-house technologies.
Midea unveils PV-compatible indoor heat pump for space-constrained residential applications
Midea has launched a compact indoor air-source heat pump for retrofit and space-constrained homes. The R290-based system offers up to 4.45 kW output, a coefficient of performance of 4.5 and smart PV-compatible controls.
Sodium-ion cells launched for energy storage by another Chinese mid-tier battery company
Bosa Energy in Hubei, China, has launched sodium-ions cells for stationary energy storage, with a volumetric energy density of 206 Wh/L
Tongwei moves into hybrid heterojunction back contact solar cell technology
Tongwei is partnering with GS-Solar and Golden Solar to develop a large-scale manufacturing facility for hybrid heterojunction back-contact (HBC) solar cells that combine heterojunction passivation, tunneling oxide and polysilicon structures used in TOPCon designs, and the grid-free front-side architecture typical of back-contact technologies.
China PV Industry Brief: China adds 32.48 GW solar as polysilicon prices fall
China’s National Energy Administration (NEA) says newly installed solar capacity reached 32.48 GW in the first two months of 2026, while the China Nonferrous Metals Industry Association (CNMIA) says polysilicon prices fell by as much as 7.95% in the latest week.
US ITC opens Section 337 probe into global TOPCon supply chain
The US International Trade Commission (ITC) has opened a Section 337 investigation into tunnel oxide passivated contact (TOPCon) solar cells, modules, panels, and related products following a complaint by First Solar, naming 47 entities across 11 countries as respondents.
Hysolar moves to take control of Suntech
Hongyuan Green Energy (Hysolar) says it plans to take control of Wuxi Suntech Solar Power through a court-led restructuring that transfers core assets into a new entity while isolating legacy debt.
JinkoSolar achieves 32.76% efficiency in perovskite-TOPCon tandem solar cell
The result was certified by China’s National Photovoltaic Industry Metrology Test Center (NPVM). The cell utilizes a perovskite top device with MBT-ligand-controlled crystallization on a TOPCon silicon bottom cell, achieving a void-free, high-efficiency tandem structure.
Nulite launches PV-driven residential heat pump
The Chinese manufacturer has unveiled a hybrid photovoltaic–geothermal heat pump system that uses solar electricity to directly power the unit, boosting efficiency and self-consumption. The 8–112 kW ground- and water-source system delivers heating, cooling, and domestic hot water with coefficients of performance often exceeding 4–5, while smart controls and the ground loop act as a thermal battery to optimize year-round performance.
