the company successfully invented sodium salt pressure leaching, sulfuric acid acidification roasting and other ore lithium extraction technologies, developed complex system sodium and potassium precise control, liquid-solid combined cycle demagnetization, "nanofiltration membrane impurity removal chelating resin impurity removal" and other advanced impurity removal technologies, and applications. the company utilizes fully automated and intelligent energy-saving equipment to achieve efficient and clean lithium extraction. to date, 10 national invention patents were authorized, and 4 provincial and ministerial science and technology awards were awarded.
using concentrated brine as raw material, we developed gradient coupling membrane separation, forced circulation evaporation crystallization, deep complexation to remove impurities and lithium precipitation, etc. to directly prepare battery-grade lithium carbonate and anhydrous lithium chloride, and recycle the crystallization mother liquor to realize brine comprehensive co-production of high-purity lithium salt. ganfeng has been granted 6 national invention patents and 2 provincial and ministerial science and technology awards.
the company has invented acid-free priority extraction of lithium and selective step-by-step impurity removal, non-constant ph control, three-element quantitative compensation and ex-situ reconstruction technologies, to achieve short-process and efficient green recycling of waste lithium batteries and lithium materials, and established lithium product production-applications -recycling demonstration ecological chain. the core technology has been granted 9 national patents, 2 provincial and ministerial science and technology progress awards, and 1 national key research and development plan project.
the invention of temperature and humidity controllable multi-anode metal lithium electrolysis cell, low-temperature vacuum distillation purification, deep gas purification, air flotation slagging and impurity removal processes to prepare battery-grade metal lithium, which reduces energy consumption by more than 30% compared with traditional high-temperature vacuum distillation purification processes. the core technology has been authorized with 5 national invention patents, and won 2 provincial and ministerial science and technology awards.
developed multiple gas protection, vertical extrusion, multi-stage continuous rolling, finishing and compounding and other lithium belt deep processing technologies and complete sets of equipment, and prepared ultra-wide and ultra-thin metal lithium belts and copper-lithium composite belts with a width of >200mm and a thickness of <30µm . the core technology has been granted 4 national patents and 2 provincial and ministerial science and technology awards.
invented a new "polymer-in-ceramics" type of inorganic-polymer composite solid flexible electrolyte membrane with elastic characteristics. the preparation of flexible solid-state batteries uses a bi-directional design interface and integrated stacking-rolling-heating process. patent application for core technologies is up to 205 national patents, of which 126 patents have been granted.
invented the process of encapsulating small polymer cells with a metal shell and a shielding film, which effectively shields electromagnetic interference, ensures the sound quality of the earphones, and improves the safety and reliability of the cells. there are 35 core technology patent applications, including 4 pct patents and 11 authorized national patents.
developed technologies such as vacuum melting dehydrogenation, distributed targeted oxygen supply and gradient controllable oxidation to achieve effective control of the reaction rate and temperature field in the reactor, and formed a complete set of processes and processes for preparing battery-grade lithium oxide powder using metallic lithium as raw materials. equipment. the core technology has been authorized with 2 national invention patents, and won the first prize of provincial scientific and technological progress.
developed a unique dropwise synthesis technology of chlorobutane metal lithium particles, invented a special solid-liquid automatic separation equipment, and realized a fully closed cycle to prepare high-quality n-butyl lithium products.
using large-capacity, high-safety, long-life square lithium iron phosphate batteries, combined with advanced packaging, group technology to build a user-side energy storage system, with "seamless switching with the grid, millisecond response, long-term overload operation, multiple containers core advantages such as parallel operation on the dc side.