Which perovskite company Longi Co., Ltd. has the most listed companies? The company achieved operating income of 54.58 billion in 2020, an increase of 65.92% year-on-year, and a compound growth rate of 49.42% in the past four years. Gross profit margin is 24.62. The company has technical reserves in various battery routes such as perovskite batteries, with revenue of 1.961 billion, a year-on-year increase of -26.76. Gross profit margin 15.74. It has some related cooperation patents such as perovskite solar cells and their preparation methods. Perovskite refers to a type of ceramic oxide whose general molecular formula is ABO3. This type of oxide was first discovered as a calcium titanate (CaTiO3) compound found in perovskite, hence the name 113 structure. In cubic crystal form. Cubic crystals often have stripes parallel to the crystal edges, which is the result of the formation of polylamellar twins when the high-temperature variant transforms into the low-temperature variant.