Yini I-Anti-I-Corrosion Coatings?

Sichithe iminyaka eyisithupha sithungatha icwecwe leqoqo lamanje lezinhlelo zamaselula. Akukaze nakanye ukuthi ikhasimende lingicele ukuthi ngichaze ukuthi i-carbon coating yenzani. Bayazi noma abanandaba. Ngakho-ke lokhu okwabantu abafike lapha bevela ku-Google futhi empeleni bafuna ukuqonda izinto.

I-aluminium foil efakwe ngekhabhoni. Yilowo mkhiqizo. Ubheke ucwecwe lwe-aluminium olungenalutho, mhlawumbe ama-microns angu-12 noma angu-13, anongqimba oluncane lwekhabhoni ezinhlangothini zombili. Ukugqoka kwengeza enye i-micron noma amabili ohlangothini ngalunye. Ikhabhoni iyashintsha. Inhloso ukuvikela i-aluminium ku-cathode slurry ngesikhathi sokukhiqizwa kwamaseli kanye naku-electrolyte ngesikhathi sokusebenza kweseli.

Kungani i-aluminium corrodes kuseli ye-Li{0}}ion ayinzima. I-LFP slurry isebenzisa i-pH 11 noma ngaphezulu. I-NMP-i-NCM slurry esekwe ku-NMP ayinalo ulaka kodwa namanje ayihambisani nensimbi engenalutho ngokuhamba kwesikhathi. Umonakalo wangempela wenzeka kusixhumi esibonakalayo phakathi kwezinto ezisebenzayo nefoil. I-pitting iqala lapho. I-Pitting iba delamination. I-Delamination iba ukufiphala kwamandla futhi ekugcineni kube ukwehluleka kwenkundla. I-Carbon coating ingumshuwalense oshibhile.

Kufanele ngikhulume ngethusi. Uhlangothi lwe-anode lusebenzisa i-copper foil. I-Copper inezinkinga ezahlukene. Ayigobi ngendlela efanayo ne-aluminium. Imodi yokwehluleka iwukuhlakazeka ku-voltage ephezulu-uma i-BMS yakho isikulufa futhi ishaja ngokweqile iseli, ama-ion ethusi ayahamba agcine lapho okungafanele ahambe khona. I-copper ehlanganisiwe ikhona. Okungavamile kakhulu ekukhiqizeni. Abafana be-Silicon anode bayayisebenzisa ngoba i-silicon ishaya isihogo ngaphandle kwe-foil ngesikhathi sokuhamba ngebhayisikili. Wonke omunye umuntu ugijima kakhulu ngethusi elingenalutho futhi alibiza ngokuthi usuku.

I-Dingsheng e-Zhenjiang cishe yenza uhhafu wephepha le-aluminiyamu eliboshiwe lingene kumaseli emhlabeni wonke. Anginaso isabelo sabo esiqondile futhi ngeke ngenze inombolo. Bakhulu. U-Wanshun ungomunye umdlali omkhulu waseShayina. Phakathi kwalabo ababili futhi mhlawumbe abathathu noma abane abancane, i-China ithumela iningi lalezi zinto emhlabeni jikelele. Ukukhipha intengo e-China kuhamba mhlawumbe ngo-15-20% ngaphansi kwempahla yase-Japan kuye ngebanga nokuthi uxoxisana kanzima kangakanani.

Abahlinzeki baseJapane basekhona. I-Toyal ibikwenza lokhu kusukela ngaphambi kokuthi kuzalwe onjiniyela abaningi bamanje. I-UACJ yenza okuthile. Ikhwalithi iyahambisana, izikhathi zokuhola zinde, futhi amanani aphakeme. Abenzi bamaseli baseJapan bathenga ucwecwe lwaseJapan. Wonke omunye umuntu ngokuvamile uthenga amaShayina ngaphandle kwalapho ikhasimende labo linemfuneko ethile ye-supply chain.

I-Korea iyisikhwama esixubile. I-Iljin yenza i-copper foil futhi yenza ukunamathela. Ukuze uthole i-aluminium, abenzi bamaseli baseKorea bayangenisa. Ngike ngabona izinhlelo ze-Samsung SDI ezicacisa i-foil yaseJapane kanye nezinhlelo ze-LG ezicacisa ucwecwe lwesiShayina kumapulatifomu ezimoto ahlukene we-automaker efanayo. Izinqumo zokuthengwa kwempahla kulelo zinga zibandakanya izici ezidlula ukusebenza kwempahla.

Ukukhiqizwa kwaseMelika-futhi ngikusho lokhu njengomuntu ongazuza ezinhlelweni eziningi zasekhaya-akukho okwamanje. Umbhangqwana wama-toll coater azothatha i-foil yakho engenalutho futhi ayiqhube ngomugqa wawo. Akukho ukukhiqiza okuhlanganisiwe esikalini sezimoto. Imali ye-IRA iyageleza. Izimemezelo ziyenzeka. Irempu yangempela{7}}yindaba ehlukile. Uma udinga umhlinzeki oqeqeshiwe we-li{9}}ion wefoil yebhethri yohlelo lwaseNyakatho Melika namuhla, usabheka ngaphesheya kolwandle.

I-coating ngokwayo akuyona isayensi ye-rocket. I-Carbon emnyama, i-PVDF binder, i-NMP solvent. Hlanganisa, uligqokise, womise, usike. Isithando somlilo esimnyama noma i-acetylene emnyama kuye ngokuthandwa ngumphakeli kanye nokusebenza okuhlosiwe. Amanye amamaki e-premium aphonsa i-graphene noma ama-carbon nanotubes. Ukuthengisa kuyakuthanda lokho. Umehluko wangempela-womhlaba wokusebenza uncane kumaseli ajwayelekile e-EV. Mhlawumbe ibalulekile ngezicelo zesilinganiso esingu-4C noma esingu-5C. Iphakethe lakho lemoto yabagibeli elingu-1C elimaphakathi ngeke liqaphele.

Okubalulekile ngaphezu kokwakhiwa ukulawula inqubo. I-Gravure coating yindlela iningi lalokhu lenziwa ngayo. Umqulu oqoshiwe uthatha i-slurry, uyidlulisele kuwebhu ye-foil ehamba ngaphansi. Kuzwakala kulula. Ukugcina isisindo se-coating ngaphakathi kwe-spec kuwebhu engu-1200mm kumamitha angu-40 ngomzuzu akulula. I-Gravure rolls iyaguga. I-viscosity ye-slurry iyashintsha phezu kwenqwaba. Ukushintsha kwezinga lokushisa kuthinta ukudluliswa. Umsabalalisi wezinto zebhethri{10}}ion ye-li{10}}angakubonisa amalothi amabili avela kumnikezeli ofanayo, i-SKU efanayo, futhi eyodwa izoba nokuhlukahluka kogqinsi oluphindwe kabili komunye.

Ukuphatha iwebhu kuyikhanda lakho siqu. I-aluminium foil lezi zinyembezi ezizacile. Ikhefu lewebhu lisho isikhathi sokuphumula, ukuchithwa, nokulahlekelwa kwesivuno. Abafana asebeneminyaka benza lokhu badayiselwe amaphrofayili abo okungezwani. Abangenayo bafunda izifundo ezibizayo. Omunye umphakeli waseShayina ngeke ngimgagule ngezinyanga ezintathu zokukhiqiza ezama ukuthuma ulayini omusha wokumboza ngoba akakwazanga ukuvimba iwebhu ukuthi ingaphulwa.

Amashidi akhethekile acela isisindo sokunamathela ku-gsm, ukumelana nendawo ngama-milliohm isikwele ngasinye, amandla okunamathela ngokuhlolwa kwe-crosshatch. Lezo zinombolo zikhona ngezinhloso zemfundo. Usuku-kuya-usuku, into abakhi bamaseli abayinaka ngempela wukuvumelana okuningi. Uma ukumelana kwakho kungu-15 milliohm endaweni eyodwa kanye no-25 kwelandelayo, lokho kubonisa njengokwehluka kweseli-kuya{8}}kumaseli kumaphakethe aqediwe. Ama-OEM ezimoto azonda ukuhluka. Ozakwethu be-OEM yebhethri{11}}ye-ion ye-li{11}}bayakuzonda ukuchaza ukuhlukahluka. Wonke umuntu ukulandelela emuva ekugcineni.

Ngibone izinhlelo zehlisa umhlinzeki we-foil endaweni eyodwa embi eyenze yaba amaseli okukhiqiza. Ubudlelwano bubalulekile kuleli bhizinisi. Ukufaneleka kuthatha izinyanga. Akekho ofuna ukufaneleka. Ngakho abahlinzeki abaletha izinto ezingaguquki bagcina ibhizinisi labo. Abahlinzeki abangashintshwa buthule.

Isimo esiqinile{0} siyeza ekugcineni. Ama-electrolyte e-sulfide aletha ikhemistri entsha ama-carbon coatings angadalelwanga yona. Ama-electrolyte e-oksidi nama-polymer awanayo inkinga encane. Amaseli ezwe aqinile-ekukhiqizeni noma eduze nasekukhiqizeni-futhi awekho amaningi-ikakhulukazi asebenzisa amakhemistri lapho okunamathelayo okuvamile kusebenza kahle. Uma amaseli asuselwa ku-sulfide{8}eke afinyelela umthamo, ukuvikela kwamanje komqoqi kuzodinga isisombululo esihlukile. I-ALD alumina, mhlawumbe. Izithiyo ze-fluoropolymer. Akekho osakale lutho okwamanje ngoba amaseli ngokwawo akakaliwe.

Okwamanje, i-carbon coated foil isalokhu injalo iminyaka engamashumi amabili. Okuyisicefe. Kudingeka. Into yomugqa ku-BOM ukuthengwa kwempahla kuzama ukwehlisa futhi ubunjiniyela buzama ukungacabangi kuze kube yilapho kukhona okungahambi kahle.

Abasabalalisi bezingxenye zebhethri zama-li{0}ion amahlanu e-US cishe bangakuthola amasampula lingakapheli iviki. Ukuthola ongaqinisekisa ukwabiwa kohlelo lwe-50 GWh kunzima. Leso isibopho sangempela se-supply chain kule ngxenye. Hhayi ubuchwepheshe. Ukuzinikela kwamandla.