Do-Fluoride New Materials Co., Ltd.

Do-Fluoride high molecular-ratio cryolite is a key flux for aluminium electrolysis and serves as a wear-resistant additive for abrasive products. Combined annual capacity with anhydrous aluminium fluoride reaches 400,000 t/y, produced via proprietary dry-process technology with industry-leading quality and stability.

Type: high molecular-ratio cryolite; Capacity: 400,000 t/y combined with AlF3; Form: flux/additive; Process: proprietary dry process

• Aluminium electrolysis flux
• Abrasive wear-resistant additive
• Glass opacifier/enamel emulsifier
• Brazing flux
• Ceramic filler

Anhydrous aluminium fluoride is a core raw material that lowers the melting point of the electrolyte and raises conductivity in aluminium electrolysis. Do-Fluoride produces it with a proprietary third-generation technology. It also serves as a non-ferrous metal flux, ceramic/enamel glaze flux, organic catalyst and synthetic cryolite feedstock. Combined capacity with cryolite is 400,000 t/y.

Type: anhydrous AlF3 (3rd-gen tech); Capacity: 400,000 t/y with cryolite; Use: aluminium electrolyte additive; Side benefit: fermentation inhibition

• Aluminium electrolysis
• Non-ferrous metal flux
• Ceramic/enamel glaze flux
• Organic synthesis catalyst
• Optical lens manufacturing

Sodium fluoride is a fluorinated new-material product of Do-Fluoride, mainly used in rimmed-steel making, drinking-water fluoridation and insecticides. It also serves as a protective layer for light-metal refining, metal cleaning solutions, brazing flux and ceramic/glass/enamel flux, and is applied in tanning and wood preservation.

Chemical: sodium fluoride (NaF); Form: industrial powder/crystal; Use: fluorination & flux; Fields: metallurgy/water/ceramics

• Rimmed-steel making
• Drinking-water fluoridation
• Insecticides
• Light-metal refining
• Ceramic/glass/enamel flux

Sodium fluosilicate is a fluorochemical product of Do-Fluoride, used as an enamel flux, glass opacifier and setting agent for acid-resistant mortar and acid-resistant concrete. It is also applied to water fluoridation, wood and leather preservatives, and is an important feedstock for other fluorides.

Chemical: sodium fluosilicate (Na2SiF6); Use: flux/opacifier/setting; Treatment: water fluoridation; Role: fluoride feedstock

• Enamel flux
• Glass opacifier
• Acid-resistant mortar/concrete setting
• Water fluoridation
• Wood/leather preservation

Potassium fluosilicate is mainly used as a raw material for producing boron-containing alloys in Al-Mg casting and as a deoxidiser and flux in aluminium alloy manufacturing. It serves as a brazing flux for aluminium, aluminium alloys and stainless steel, and is applied in glass and ceramic industries.

Chemical: potassium fluosilicate (K2SiF6); Use: boron-alloy feedstock/deoxidation flux; Application: brazing flux; Industries: glass/ceramics

• Al-Mg boron-alloy feedstock
• Al alloy deoxidiser/flux
• Al/stainless brazing flux
• Glass industry
• Ceramic industry

Precipitated silica is an eco-friendly, high-performance additive and a fluorinated new-material product of Do-Fluoride. The company coproduces high-quality silica via high-value utilisation of fluosilicic acid by-product from phosphate fertiliser, mainly for rubber products (incl. HTV silicone rubber), textiles, paper, agrochemicals and food additives.

Type: precipitated silica; Source: coproduct of fluosilicic acid; Property: eco additive; Process: high-value F-Si utilisation

• Rubber/silicone products
• Textiles
• Paper
• Agrochemicals
• Food additives

Anhydrous hydrogen fluoride is the basic feedstock for elemental fluorine, fluorinated refrigerants and inorganic fluorides, and can be formulated into hydrofluoric acid. It is widely used in atomic energy, chemical and petroleum industries as a strong oxidant and organic catalyst, and for graphite making and glass etching. Do-Fluoride operates both fluorite-sulfuric acid and fluosilicic acid routes to HF.

Chemical: anhydrous HF; Property: strong oxidant/basic feedstock; Downstream: HF acid/elemental F/refrigerants; Routes: fluorite & fluosilicic acid

• Inorganic fluoride feedstock
• Fluorinated refrigerants
• Atomic energy/chemical/petroleum
• Graphite making & organic catalysis
• Glass etching

Lithium hexafluorophosphate (LiPF6) is Do-Fluoride's flagship new-energy material and the most widely commercialised lithium battery electrolyte salt. The company has 65,000 t/y integrated high-purity crystalline capacity with high purity, strong stability and safe transport, serving major domestic electrolyte makers and exporting to Korea, Japan and Europe. Key performance exceeds domestic peers.

Name: Lithium Hexafluorophosphate (LiPF6); Capacity: 65,000 t/y; Purity: high-purity crystalline; Quality: key indices above peers; Market: global front-runner

• Li-ion battery electrolyte
• Power batteries
• Storage batteries
• Consumer electronics batteries
• Electrolyte exporters

Lithium difluorophosphate (LiPO2F2) is a high-performance Li battery electrolyte additive/salt that improves cycle life and high-temperature performance. As a new lithium salt, it is often combined with LiPF6 to enhance electrochemical performance, belonging to Do-Fluoride's electrolyte salt series.

Name: Lithium Difluorophosphate (LiPO2F2); Type: Li salt/additive; Use: cycle & high-temp; Pairing: LiPF6

• Li-ion electrolyte additive
• Power batteries
• Storage batteries
• Consumer electronics batteries

Lithium bis(fluorosulfonyl)imide (LiFSI) is a next-generation high-performance lithium battery electrolyte salt that, combined with LiPF6, improves capacity and electrochemical performance. Do-Fluoride's new technology sharply cuts cost and a kilotonne-scale line has been built, enabling wide commercial use.

Name: Lithium Bis(fluorosulfonyl)imide (LiFSI); Capacity: kilotonne-scale; Property: new electrolyte salt; Cost: sharply reduced by new tech

• Li-ion battery electrolyte
• High-energy power batteries
• Storage batteries
• Blended with LiPF6

Sodium hexafluorophosphate (NaPF6) is a key electrolyte salt for sodium-ion batteries. Do-Fluoride was among the first to commercialise it at scale, with a kilotonne-class line built. Customers include major sodium-ion battery and electrolyte makers; LiPF6 lines can be rapidly switched to NaPF6 as demand grows.

Name: Sodium Hexafluorophosphate (NaPF6); Capacity: kilotonne-class (~1000 t/y); Property: Na-ion electrolyte salt; Switch: LiPF6 lines convertible

• Sodium-ion battery electrolyte
• Energy storage
• Electric two-wheelers
• Start-stop power
• A00 EVs/commercial vehicles

Lithium tetrafluoroborate (LiBF4) is a lithium battery electrolyte salt with good low-temperature conductivity and thermal stability, often used in blended electrolytes and as an additive. It belongs to Do-Fluoride's new lithium salt series, meeting differentiated battery needs.

Name: Lithium Tetrafluoroborate (LiBF4); Type: Li salt/electrolyte; Feature: excellent low-temp conductivity; Use: electrolyte blend

• Li-ion battery electrolyte
• Low-temperature batteries
• Storage batteries
• Electrolyte additive

Lithium bis(oxalate)borate (LiBOB) is a high-performance lithium battery electrolyte salt with high thermal stability and stable SEI formation, improving safety and cycle life. It belongs to Do-Fluoride's new lithium salt series.

Name: Lithium Bis(oxalate)borate (LiBOB); Type: Li salt/electrolyte; Feature: high thermal stability/stable SEI; Use: electrolyte blend

• Li-ion battery electrolyte
• Power batteries
• Storage batteries
• Electrolyte additive

Lithium difluoro(oxalato)borate (LiDFOB) combines the merits of LiBOB and LiBF4 with balanced thermal stability and low-temperature performance, a new Li battery electrolyte additive/salt. It belongs to Do-Fluoride's new lithium salt series, enhancing overall electrochemical performance.

Name: Lithium Difluoro(oxalato)borate (LiDFOB); Type: Li salt/additive; Feature: thermal & low-temp balance; Use: electrolyte blend

• Li-ion battery electrolyte
• Power batteries
• Storage batteries
• Electrolyte additive

Ultra high-purity electronic-grade hydrofluoric acid is a core electronic-information material of Do-Fluoride with 60,000 t/y capacity and UP-SSS (Grade 5) quality meeting 12-inch wafer needs. Divided into semiconductor and PV grades, it has entered the supply chains of TSMC, Samsung and SMIC. Made via multistage distillation, reheat and microfiltration.

Grade: UP-SSS (Grade 5); Capacity: 60,000 t/y; Purity: 12-inch wafer; Process: distillation/reheat/microfiltration; Customers: TSMC/Samsung/SMIC

• Semiconductor IC
• Chip manufacturing
• TFT LCD
• PV solar cells
• Coated glass

Electronic-grade nitric acid is an electronic chemical of Do-Fluoride's electronic-information materials, used in cleaning and etching for semiconductor and panel manufacturing. It is purified on the company's own electronic-chemical platform to meet high-end process cleanliness.

Name: electronic-grade nitric acid (HNO3); Type: electronic chemical; Use: cleaning/etching; Property: ultra-high purity

• Semiconductor cleaning
• Panel manufacturing
• IC process
• Photovoltaics

Electronic-grade ammonium hydroxide is an electronic chemical of Do-Fluoride's electronic-information materials, used in cleaning and developing for semiconductor and panel manufacturing. The company has serialised electronic-chemical production meeting high-end customer cleanliness.

Name: electronic-grade ammonium hydroxide (NH4OH); Type: electronic chemical; Use: cleaning/developing; Property: ultra-high purity

• Semiconductor cleaning
• Panel manufacturing
• IC process
• Photovoltaics

Electronic-grade ammonium fluoride is an electronic chemical of Do-Fluoride's electronic-information materials, used in etching and cleaning for semiconductor and panel manufacturing. Part of the company's electronic-chemical series, verified at several known semiconductor and panel firms with some in batch sales.

Name: electronic-grade ammonium fluoride (NH4F); Type: electronic chemical; Use: etching/cleaning; Property: ultra-high purity

• Semiconductor etching
• Panel manufacturing
• IC process
• Photovoltaics

Electronic-grade silane is a key electronic special gas of Do-Fluoride's electronic-information materials, made by subsidiary Zhejiang Zhongning Silicon with 4,000 t/y capacity and a 5,000 t/y project phased in. It is a national key new product, one of few electronic-grade silanes usable in semiconductor, TFT, PV and coated glass, with expanding use in advanced and third-gen semiconductors.

Name: electronic-grade silane (SiH4); Capacity: 4,000 t/y (plan 5,000 t/y); Maker: Zhejiang Zhongning Silicon; Grade: national key product; Coverage: semi/TFT/PV/coated glass

• Advanced-process semiconductors
• Third-gen semiconductors
• TFT LCD
• Photovoltaics
• Coated glass

High-purity nano silicon powder and high-performance silicon-carbon materials are electronic-chemical and battery-material processes mastered by Do-Fluoride, used mainly as anode active material to raise energy density. The company has the process and advances the industrialisation of silicon-based anodes.

Name: high-purity nano Si powder / Si-C material; Type: silicon-based anode; Use: raise Li energy density; Status: industrialisation advancing

• Li-ion battery anode
• Power batteries
• Consumer electronics batteries
• Storage batteries

High-purity fluorine gas is an electronic special gas process mastered by Do-Fluoride, a key feedstock for semiconductor etching and cleaning and fluorinated-material synthesis. Leveraging fluorochemical strength, the company builds high-purity fluorinated electronic gases for high-end semiconductor needs.

Name: high-purity fluorine (F2); Type: electronic special gas; Use: etching/cleaning/fluorinated synthesis; Source: fluorochemical tech

• Semiconductor etching
• IC manufacturing
• Fluorinated-material synthesis
• Panel manufacturing

Fluorine-nitrogen mixed gas (fluorine blended with nitrogen electronic special gas) is an electronic-chemical process of Do-Fluoride, used in ion implantation and chamber cleaning for semiconductors. Part of the company's electronic-gas series, developed to customer specification.

Name: fluorine-nitrogen mixed gas (F2/N2); Type: electronic special gas; Use: ion implantation/chamber cleaning; Property: custom blend

• Semiconductor ion implantation
• Chamber cleaning
• IC manufacturing
• Panel manufacturing

PI stripping solution (polyimide stripper) is part of Do-Fluoride's electronic-chemical series, used to strip/remove polyimide photoresist/protective layers in semiconductor and panel manufacturing. The company has custom electronic-chemical development capability, with products verified at customers.

Name: PI stripping solution; Type: electronic chemical; Use: PI layer removal; Property: custom development

• Semiconductor manufacturing
• Panel/TFT manufacturing
• IC process
• Photolithography

The 40/42 cylindrical series is Do-Fluoride's LFP large cylindrical product with dual top-bottom explosion-proof 'can' structure and full-tab welding for high safety and low cost. Covers 40135 (20Ah) and 42135 (24Ah), energy density >=170 Wh/kg, cycle life 4,000 times. The 'FluorinCore' cylindrical cell has bidirectional venting and all-cell CTC structure.

Models: 40135E-20Ah / 42135-24Ah; Nominal voltage: 3.2V; Capacity: 20/24Ah; Energy density: >=170/178 Wh/kg; Cycle: 4000/3000 (70% SOH); Rate: max 2C

• Energy storage systems
• Electric two/three-wheelers
• Light vehicles
• Power batteries
• Portable storage

Pouch cells are a main product system of Do-Fluoride's new-energy batteries, covering ternary pouch and fast-charge pouch cells. Mainly used in NEVs, electric two/three-wheelers and storage, the company has a full chain from materials to cells.

Type: ternary pouch / fast-charge pouch; System: Li-ion; Feature: high density / fast charge; Chain: materials-to-cell integration

• NEVs
• Electric two/three-wheelers
• Storage systems
• Consumer electronics

The prismatic aluminium-case lithium battery (incl. prismatic LFP) is one of Do-Fluoride's two new-energy battery systems, with large cylindrical and prismatic lines totalling about 30 GWh/y. Mainly used in storage, NEVs and power.

Type: prismatic Al-case Li-ion; System: LFP etc.; Capacity: ~30 GWh/y; Form: prismatic Al case; Use: storage/power

• Large-scale storage
• Commercial/industrial storage
• NEVs
• Power batteries
• Home storage

The sodium-ion battery is an emerging product system of Do-Fluoride's new-energy batteries; subsidiary Jiaozuo New Energy has 1 GWh/y capacity and Guangxi Ningfu plans 5 GWh/y. Cathode uses proprietary layered-oxide route plus polyanion and Prussian compounds, for storage and two-wheelers.

Type: sodium-ion battery; Cathode: layered oxide (also polyanion/Prussian); Capacity: Jiaozuo 1 GWh/y (Guangxi plan 5 GWh/y); Property: emerging system

• Energy storage
• Electric two-wheelers
• Start-stop power
• A00 EVs/commercial vehicles
• Portable storage

Boron isotopes and boron-based new materials are an emerging series under Do-Fluoride's 'Century Project' strategy; the company broke technical barriers and filled a domestic gap. Products include boron trifluoride, boron-10 acid, boron-11 trifluoride, boron carbide and zirconium boride, for neutron shielding, nuclear control, BNCT and chips. CGN has placed orders, achieving commercial breakthrough.

Products: BF3 / B-10 acid / B-11F3 / B4C / ZrB2; Property: boron isotopes & boron materials; Status: CGN orders (commercial); Tech: fills domestic gap

• Atomic energy / reactor control
• Boron neutron capture therapy (BNCT)
• Semiconductor chip manufacturing
• Neutron shielding
• National strategic materials