Lithium Hexafluorophosphate (LiPF₆)

Lithium hexafluorophosphate (lub npe hu ua LiPF₆), molecular mis LiPF₆, CAS No. 21324-40-3, yog cov khoom siv ntsev lithium ntsev rau lithium-ion roj teeb electrolytes, feem ntau hu ua "lithium ntsev" hauv kev lag luam. Nyob rau hauv chav tsev kub, nws zoo nkaus li ib tug dawb crystalline hmoov nrog muaj zog deliquescence thiab yog heev nquag hydrolysis thaum raug rau ya raws. Nws yaj yooj yim hauv cov kuab tshuaj organic xws li carbonates, methanol thiab ethanol. Nyob rau hauv cov tshuab electrolyte, nws xa cov ionic conductivity zoo heev thiab electrochemical qhov rais kev ua tau zoo thiab tuaj yeem tsim ib qho ruaj khov SEI zaj duab xis rau ntawm qhov chaw anode.

LiPF₆ yog qib tseem ceeb lithium-ntsev rau cov roj teeb hluav taws xob, cov neeg siv khoom siv lithium-ion roj teeb thiab cov roj teeb lub zog, thiab tau tuav txoj haujlwm ntev ntawm cov roj lithium ntsev. Sib npaug ntawm tus nqi tag nrho, cov khoom lag luam-chain maturity thiab kev ua tau zoo, nws ua tau zoo tshaj lithium ntsev ntsev tam sim no. Nws feem ntau yog sib xyaw nrog lithium bis (fluorosulfonyl) imide (LiFSI) kom ua tiav ob qho tib si kev ua haujlwm zoo dua qub thiab kev ua haujlwm kub qis.

Ob txoj kev lag luam tseem ceeb tau txais yuav: hydrogen-fluoride hnyav txoj kev thiab cov txheej txheem organic-solvent. Lab-scale txoj kev xws li cov khoom siv roj av tsis tshua siv rau kev tsim khoom loj vim muaj teeb meem scaling.

Txoj Kev Hydrogen-Fluoride Solvent (Mainstream Industrial Route)
Siv lithium fluoride, anhydrous hydrogen fluoride (HF) thiab phosphorus pentafluoride (PF₅) ua raw cov ntaub ntawv, synthesis, crystallization thiab filtration yog nqa tawm nyob rau hauv qis kub nyob rau hauv lub anhydrous hydrogen-fluoride system, ua raws li los ntawm qhuav nyob rau hauv inert roj thiab hermetic ntim. Qhov no yields high-purity cov khoom uas tsis muaj impurities, haum rau lub hwj chim-battery-qib daim ntaub ntawv. Txawm li cas los xij, nws ua rau muaj kev tiv thaiv corrosion siab heev rau cov khoom siv thiab yuav tsum tau tswj HF nruj, nrog rau kev siv zog siab. Cov tuam txhab ua lag luam hauv Suav teb tau txais kev siv thev naus laus zis txuas ntxiv nrog cov roj hluav taws xob txuas ntxiv, kev sib txuas thiab crystallization, xa cov khoom ruaj khov zoo thiab kev tswj xyuas zoo.

Organic-Solvent Method
Cov tshuaj tiv thaiv muaj nyob rau hauv cov organic-solvent systems xws li carbonates. Nws zam qhov ntim loj ntawm HF anhydrous thiab muaj cov khoom siv qis dua. Txawm li cas los xij, kev tswj cov kuab tshuaj residues ua rau muaj kev nyuaj siab, thiab nws cov high-purity zog-qib stability yog qis dua ntawm txoj kev hydrogen-fluoride. Nws feem ntau yog siv rau hauv cov neeg siv roj teeb thiab nruab nrab-rau-qib electrolytes.

Cov kab ntau lawm yog nruab nrog kev txhawb nqa rau kev tshem tawm dej tob, tshem tawm hlau-ion thiab inert-atmosphere refining. Cov tuam txhab lag luam hauv Suav teb siv cov txheej txheem sib xyaw ua ke npog cov khoom siv fluorochemical thiab lithium, nrog kev txhawb nqa tus kheej hydrogen-fluoride thiab PF₅ cov chaw, muab cov nqi tseem ceeb- thiab cov txiaj ntsig zoo.

Qhov sib txawv tseem ceeb ntawm cov qib yog nyob rau hauv qhov tseeb ntawm kev tswj cov dej noo, dawb HF thiab hlau ions. Cov khoom siv hluav taws xob-cov roj teeb-qib thiab lub zog-kho-qib cov khoom tsim cov kev cai nruj rau cov dej noo tsawg thiab cov ntsiab lus tsis muaj hlau-ion. Cov khoom siv-electronic-qib yuav tsum tsis txhob raug txo qis thiab hloov pauv rau lub zog-roj teeb lossis lub zog khaws cia.

Upstream Raw Khoom

Cov ntaub ntawv tseem ceeb muaj xws li lithium fluoride / lithium carbonate, anhydrous hydrogen fluoride thiab phosphorus pentafluoride. Cov khoom siv fluorine pib los ntawm fluorite. Cov khoom siv pabcuam suav nrog cov kuab tshuaj carbonate nrog rau cov roj tiv thaiv tsis zoo xws li argon thiab nitrogen. Muaj teeb meem nyob rau hauv high-purity anhydrous HF, fluorine-resistant corrosion-proof khoom thiab lithium-resource mov.

Cov ntawv thov hauv qab

Core lithium ntsev rau electrolytes: ua lithium-ion conduction, suav txog kwv yees li 40% -50% ntawm cov nqi electrolyte; txiav txim siab electrolyte ionic conductivity, electrochemical stability thiab roj teeb lub voj voog-kev nyab xeeb kev ua haujlwm.

Cov tsheb tshiab-zog: electrolytes rau lub hwj chim ternary roj teeb thiab lithium-hlau-phosphate roj teeb.

Energy-storage sector: loj-scale zog-storage fais fab chaw nres tsheb, nyob rau hauv lub zog-storage systems, portable zog-storage fais fab mov.

3C cov neeg siv khoom lithium-ion roj teeb: xov tooj ntawm tes, ntsiav tshuaj, laptops, Bluetooth earphones, lub tsev txhab nyiaj fais fab.

Lwm tus: cov khoom siv tshwj xeeb electrochemical thiab electrochemical kev tshawb fawb.

Kev lag luam saw: Lithium hexafluorophosphate manufacturers → electrolyte producers → lithium-ion-cell manufacturers → kawg-neeg siv tsheb tuam txhab uas muag, lub zog-storage integrators thiab cov neeg siv khoom-electronic hom.

LiPF₆ hydrolyses thaum sib cuag nrog dej los yog noo noo los tsim cov tshuaj corrosive heev xws li hydrogen fluoride (HF). Nws ua rau muaj kev phom sij ntawm daim tawv nqaij, ua rau lub qhov muag loj thiab ua rau muaj kev phom sij, thiab tuaj yeem ua rau mob pob txha thiab hniav. Nws yuav tsum tau tswj nruj me ntsis raws li ib tug corrosive txaus ntshai tshuaj.

Ntim: Stainless-steel-lined aluminium lossis steel cylinders uas muaj argon rau hermetic sealing kom cais cov dej noo; Net nyhav: 10 kg, 25 kg. Cov nruas yas zoo tib yam lossis qhib ntim yog txwv.

Cia: Khaws rau hauv qhov chaw txias, qhuav, huab cua nruj hauv qab inert-atmosphere tiv thaiv nrog kub tswj. nruj nreem cais tawm ntawm huab cua thiab noo noo. Warehouses yuav tsum muaj dej-pov thawj thiab zoo-ventilated. Khaws cais, kom deb ntawm oxidants, dej qhov chaw, acids thiab alkalis. Thaum qhib, pub cov ntaub ntawv sai sai kom tsis txhob cuam tshuam ntev thiab nqus dej noo.

Kev thauj mus los: Regulated li corrosive hazardous tshuaj. Tiv thaiv los ntawm ya raws thiab nag; zam kev tshav ntuj ncaj qha thiab kub siab. Tiv thaiv kom tsis txhob ntim khoom puas thiab dej nkag mus thoob plaws hauv kev thauj mus los. Cov tsheb thauj mus los yuav tsum tau nruab nrog cov khoom siv tiv thaiv thaum muaj xwm txheej ceev.

Kev tiv thaiv kev ua haujlwm: Hnav fluorine-resistant face shields, HF-resistant hnab looj tes thiab tiv thaiv khaub ncaws. Ua haujlwm hauv cov hnab looj tes tsis muaj dej lossis kaw qhov tsis zoo-siab pub noj. Thaum muaj kev sib cuag ntawm daim tawv nqaij, thov siv calcium gluconate gel rau kev kho mob xwm txheej ceev thiab nrhiav kev kho mob tam sim ntawd.

Pov tseg pov tseg: Cov khoom siv siv tau raug cais raws li cov pov tseg pov tseg. Cov tsev kho mob tsim nyog-khoom pov tseg uas tsim nyog yuav tsum ua kom tsis muaj HF thiab fluorides. Txwv tsis pub muab pov tseg lossis tso dej tawm ncaj qha.

Q: Vim li cas thiaj yuav tsum muaj cov ntsiab lus noo ntawm lithium hexafluorophosphate tswj nruj?

A: LiPF₆ tau dhau los ua hydrolysis sai thaum muaj dej, tsim cov tshuaj corrosive nrog rau hydrogen fluoride (HF). HF corrodes roj teeb hlwb thiab catalyses electrolyte decomposition, ua rau lub roj teeb o vim roj tsim, ntse voj voog-kev ua tau zoo degradation thiab thermal-runaway txaus ntshai. Cov dej noo yog li ntawd yog ib qho tseem ceeb tshaj plaws kev ntsuas ntsuas rau cov tshuab electrolyte.

Q: Qhov txawv ntawm LiPF₆ thiab LiFSI yog dab tsi? Yuav ua li cas xaiv ntawm lawv?

A: LiPF₆ nta mature industrialization, txo nqi thiab sib npaug kev ua tau zoo, ua raws li lub hauv paus lithium ntsev. LiFSI muab cov khoom siv hluav taws xob zoo dua thiab kev ruaj ntseg hydrolysis, tab sis nws los nrog cov nqi siab dua thiab muaj kev pheej hmoo ntawm aluminium-foil corrosion. Kev lag luam feem ntau lees txais LiPF₆ ua lub ntsiab lus tseem ceeb nrog ib feem me me ntawm LiFSI ntxiv rau hauv cov txheej txheem sib xyaw kom sib npaug ntawm lub neej voj voog thiab kev ua haujlwm siab- / qis-kub. Rau cov khoom siv hluav taws xob siab-cov roj teeb thiab lub zog khaws cia, lub zog-roj teeb-qib LiPF₆ yuav tsum raug xaiv; Cov khoom siv hluav taws xob-qib yuav tsum tsis txhob siv los ua ib qho kev hloov pauv.

Q: Dab tsi yog qhov kev lag luam zoo ntawm Tuam Tshoj lithium-hexafluorophosphate sector?

A: Tuam Tshoj yog lub ntiaj teb no tus tsim khoom loj tshaj plaws thiab cov khoom lag luam ntawm lithium hexafluorophosphate nrog cov muaj zog muaj zog. Kev txhawb nqa los ntawm kev ua tiav fluorine-lithium cov saw hlau npog cov fluorite thiab lithium ore nrog rau cov dej tsis muaj HF, kev sib koom ua lag luam loj loj ua tiav cov nqi tsim khoom thiab kev xa khoom ruaj khov. Mature nruam-synthesis thev naus laus zis ua rau kev hloov pauv hauv tsev rau cov khoom siv hluav taws xob siab-cov roj teeb-qib, uas nws cov purity thiab metallic-ion ntsuas tau ua raws li cov qauv ntsuas thoob ntiaj teb. Qhov sib thooj rau electrolyte thiab cell industrial pawg shortens logistics cycles thiab enables ceev kev txiav txim teb. Mature fluorochemical-txheej txheem cov cuab yeej thiab peb-khoom-kho-kho tshuab txhawb ruaj khov loj-ntim cov ntawv cog lus mus sij hawm ntev. Leveraging Tuam Tshoj lub loj LiPF₆-kev ua lag luam zoo, 7DCHEM siv dual-warehouse cov kev pab cuam nyob rau hauv teb chaws Poland kom tau raws li cov tshuaj-kev xav tau nyob rau hauv Central-Eastern Europe thiab Ukraine.

Parameters, txheej txheem thiab kev lag luam cov ntaub ntawv nyob rau hauv cov ntaub ntawv no yog muab tso ua ke los ntawm pej xeem-muaj cov ntaub ntawv tso cai rau siv xwb:

ChemicalBook / PubChem Physical-Property Database (CAS 21324-40-3) - Cov mis mos molecular, molecular hnyav, ntom, thermal stability thiab lwm yam physicochemical ntsuas

Merck / Sigma-Aldrich lithium-hexafluorophosphate technical datasheets thiab SDS

Tuam Tshoj Lithium-Battery-Material Industry Research Report (2025-2026 Tuam Tshoj LiPF₆ Kev Tshawb Fawb Kev Lag Luam) - cov txheej txheem, kev tsim muaj peev xwm thiab kev lag luam qis

• Tshawb nrhiav Shanghai Dingwujin Chemical Co., Ltd.functional-intermediates-specialty-chemicalscov khoom,Lithium hexafluorophosphate
• Shanghai Dingwujin Chemical Co., Ltd. Reachs Battery-Qib Lithium Hexafluorophosphate Purchase Cooperation Intent With Do-Fluoride New Materials Co., Ltd. Thiab Jiangsu Jiujiujiu Technology Co., Ltd.