Chii chinonzi Anti-Corrosion Coatings?

Akapedza makore matanhatu achitsvaga ikozvino muunganidzi foil yemasero zvirongwa. Haana kumbobvira aita kuti mutengi andibvunze kuti nditsanangure zvinoita kabhoni coating. Vanoziva kana kuti havana basa nazvo. Saka izvi ndezvevanhu vakasvika pano kubva kuGoogle uye vanoda chaizvo kunzwisisa zvinhu.

Carbon yakavharwa nealuminium foil. Ndicho chigadzirwa. Uri kutarisa paaruminiyamu foil isina chinhu, pamwe 12 kana 13 microns, ine yakatetepa kabhoni layer kumativi ese. Coating inowedzera imwe micron kana maviri padivi. Iyo carbon is conductive. Chinangwa ndechekuchengetedza aluminium kubva kune cathode slurry panguva yekugadzira masero uye kubva ku electrolyte panguva yekushanda kwesero.

Sei aruminiyamu ichiora muLi-ion cell haina kunetsa. LFP slurry inomhanya pH 11 kana kupfuura. NMP{{4}inobva kuNCM slurry haina hukasha asi haina hushamwari nesimbi isina chinhu nekufamba kwenguva. Iko kukuvadza chaiko kunoitika painterface pakati pezvinhu zvinoshanda uye foil. Pitting inotangira ipapo. Pitting inova delamination. Delamination inova kugona kupera uye pakupedzisira kutadza kwemunda. Carbon coating inshuwarisi yakachipa.

Ndinofanira kutaura nezvemhangura. Anode side inoshandisa foil yemhangura. Mhangura ine nyaya dzakasiyana. Haina gomba zvakafanana nenzira inoita aluminium. Iyo fanika mode ndeyekunyungudutswa pamhepo yakakwira-kana BMS yako ikakwirisa nekuchaja sero, maion emhangura anobva aenda paasingafanire kuenda. Coated copper iripo. Zvishoma zvakajairika mukugadzira. Silicon anode vakomana vanoishandisa nekuti silicon inorova gehena kunze kwefoil pamusoro panguva yebhasikoro. Vamwe vese vanomhanya mhangura isina chinhu uye vanoidana zuva.

Dingsheng muZhenjiang angangodaro anogadzira hafu yearuminiyamu foil inopinda mumaseru pasi rese. Ini handina mugove wavo chaiwo uye handisi kuzogadzira nhamba. Vakakura. Wanshun ndiye mumwe mutambi mukuru wechiChinese. Pakati pevaviri uye pamwe vatatu kana vana vakomana vadiki, China inotakura zvakawanda zvezvinhu izvi pasi rose. Mitengo kubva kuChina inomhanya pamwe 15-20% pasi peJapan zvinhu zvichienderana negiredhi uye kuti wakaomesesa sei kutaurirana.

Vatengesi veJapan vachiripo. Toyal anga achiita izvi kubvira pasati pazvarwa mainjiniya mazhinji ebhatiri. UACJ inoita zvimwe. Hunhu hunoenderana, nguva dzekutungamira dzakareba, uye mitengo yakakwira. Vagadziri vemasero eJapan vanotenga foil yeJapan. Wese munhu anonyanya kutenga Chinese kunze kwekunge mutengi wavo aine chaidiwa cheni yekugovera.

Korea ibhegi rakasanganiswa. Iljin inogadzira foil yemhangura uye inovhara. Kune aluminium, Korean cell makers inopinza. Ndakaona Samsung SDI zvirongwa zvechiJapan foil uye LG zvirongwa zveChinese foil pamapuratifomu emotokari akasiyana eiyo automaker. Sarudzo dzekutenga padanho iro zvinosanganisira zvinhu zvakapfuura kuita kwezvinhu.

Kugadzirwa kwemuAmerica-uye ndinotaura izvi semunhu angabatsirike kubva kune dzimwe sarudzo dzemumba-hachipo parizvino. Vaviri ve toll coaters vanozotora yako isina foil vomhanyisa nemutsetse wavo. Hapana kugadzirwa kwakabatanidzwa pachiyero chemotokari. IRA mari iri kuyerera. Zviziviso zviri kuitika. Kukwidza chaiko-inyaya yakasiyana. Kana uchida mutengesi ane-ion bhatiri refoil yechirongwa cheNorth America nhasi, uchiri kutarisa mhiri kwegungwa.

Iyo yekupfeka pachayo haisi rocket science. Carbon dema, PVDF binder, NMP solvent. Sanganisa, ipfekedze, iome, icheke. Furnace dema kana acetylene dema zvichienderana neanopa zvaanoda uye chinangwa conductivity. Mamwe mamakisi ekutanga anokanda mugraphene kana kabhoni nanotubes. Marketing inoda izvozvo. Musiyano chaiwo-wepasi rose uri pamucheto wemasero eEV akajairwa. Zvimwe zvine basa kune 4C kana 5C chiyero chekushandisa. Yako avhareji 1C yevatakuri mota paki haisi kuzozviona.

Chinonyanya kukosha pane kuumbwa ndiko kutonga kwemaitiro. Gravure coating ndiyo nzira yakawanda yeiyi inogadzirwa. Yakanyorwa roll inotora slurry, inoendesa kune iyo foil webhu inofamba nepasi. Inonzwika nyore. Kuchengeta uremu hwekuputira mukati meiyo 1200mm webhu pa40 metres paminiti hazvisi nyore. Gravure rolls inopfeka. Slurry viscosity inoshanduka pamusoro pebatch. Kuchinja kwetembiricha kunokanganisa kutamiswa. A li-ion bhatiri muparadzi anogona kukuratidza mijenya miviri kubva kumutengesi mumwe chete, SKU imwe chete, uye imwe ichave nekaviri kusiyana kweukobvu hweimwe.

Webhu kubata ndiwo musoro wayo. Aluminium foil iyi misodzi yakatetepa. Kuputsika kwewebhu kunoreva kuderera, zvimedu, uye kurasikirwa kwegoho. Vakomana vava nemakore vachiita izvi vane tension profiles dialed in. Vachangopinda vanodzidza zvidzidzo zvinodhura. Mumwe mutengesi weChinese ini handizodoma akarasikirwa nemwedzi mitatu yekugadzira achiedza kutumira tambo nyowani yekubikira nekuti havana kukwanisa kuita kuti webhu dzisatyoke.

Mashizha akajeka anokumbira uremu hwekuputira mu gsm, resistivity yepasi mumamiliohms paskweya, simba rekunamatira kuburikidza necrosshatch bvunzo. Nhamba idzodzo dziripo nekuda kwezvinangwa. Zuva-ku-zuva, icho vanogadzira maseru vane hanya nacho ndechekusachinja-chinja kwakawanda. Kana kuramba kwako kuri 15 milliohms pajeti rimwe uye 25 pane rinotevera, zvinoratidzika sesero-ku-kusiyana kwesero mumapakiti apera. Zvemotokari maOEM anovenga mutsauko. Vadyidzani vavo veOEM li-ion bhatiri vanovenga kutsanangura musiyano. Wese munhu anozozvitsvaga kumashure.

Ndakaona mapurogiramu achidonhedza mutengesi wefoil pamusoro peimwe yakaipa yakawanda iyo yakaita kuti ive maseru ekugadzira. Hukama hune basa mubhizinesi iri. Kukodzera kunotora mwedzi. Hapana anoda kukodzera. Saka vatengesi vanoendesa zvinhu zvinowirirana vanochengeta bhizinesi ravo. Vatengesi vasingatsiviwe chinyararire.

Nzvimbo yakasimba-iri kuuya. Sulfide electrolytes inounza makemikari matsva ayo kabhoni coatings haana kugadzirwa. Oxide uye polymer electrolytes haina dambudziko. Masero akasimba-ari mukugadzirwa kana pedyo nekugadzirwa-uye hakuna akawanda-anonyanya kushandisa machemistries uko mabhachi echinyakare anoshanda zvakanaka. Kana sulfide{{8}based cells ikamborova volume, azvino anounganidza kudzivirira anozoda imwe mhinduro. ALD alumina, pamwe. Fluoropolymer zvipingamupinyi. Hapana ati akwira chero chinhu nekuti maseru pachawo haana kuyerwa.

Parizvino, kabhoni yakavharwa foil inoramba iri iyo yave iri kwemakore makumi maviri. Boring. Necessary. Chinhu chemutsara paBOM icho kutenga kunoedza kudhura pasi uye engineering inoedza kusafunga nezvazvo kudzamara chimwe chinhu chatadza.

Vaparadziri vashanu vebhatiri-ioni vashanu muUS vanogona kukuwanira masampuli mukati mesvondo. Kutsvaga uyo anogona kuvimbisa kugoverwa kwechirongwa che50 GWh kwakaoma. Ndiko kumanikidzira kwezvekutengesa muchikamu chino. Kwete teknolojia. Capacity kuzvipira.