Cathode Material
Mukugadzirira kwe inorganic electrode zvinhu zvelithium ion mabhatiri, tembiricha yakasimba solid state reaction ndiyo inonyanya kushandiswa.High tembiricha solid-phase reaction: inoreva maitiro ayo mareactants anosanganisira solid-phase zvinhu anoita kwenguva yakati pane imwe tembiricha uye anoburitsa kemikari kuita kuburikidza nekuparadzanisa pakati pezvinhu zvakasiyana-siyana kugadzira iyo yakagadzikana makomisheni pane imwe tembiricha. , kusanganisira yakasimba-yakasimba reaction, solid-gas reaction uye solid-liquid reaction.
Kunyange kana nzira ye sol-gel, nzira yekudzikisa, nzira yehydrothermal uye nzira ye solvothermal inoshandiswa, yakasimba-phase reaction kana solid-phase sintering pakupisa kwepamusoro inowanzodiwa.Izvi zvinodaro nekuti iyo nheyo yekushanda yelithium-ion bhatiri inoda kuti iyo electrode zvinhu inogona kudzokorodza kuisa uye kubvisa li +, saka dhizaini yayo inofanirwa kuve nekugadzikana kwakakwana, izvo zvinoda kuti crystallinity yezvinhu zvinoshanda inofanira kunge yakakwira uye chimiro chekristaro chinofanira kugara chiripo. .Izvi zvakaoma kuwana pasi pemamiriro ekushisa, saka zvigadzirwa zve electrode zve lithium-ion mabhatiri anoshandiswa pari zvino anowanikwa kuburikidza nepamusoro-tembiricha yakasimba-state reaction.
Iyo cathode material processing production line inonyanya kusanganisira kusanganisa sisitimu, sintering system, kupwanya system, yekugeza mvura system (chete high nickel), yekurongedza system, poda inotakura system uye nehungwaru kutonga system.
Kana iyo yakanyorova kusanganisa nzira inoshandiswa mukugadzirwa kwezvinhu zvecathode zve lithiamu-ion mabhatiri, matambudziko ekuomesa anowanzosangana.Akasiyana-siyana anonyungudutsa anoshandiswa mukunyorova kusanganisa maitiro anozotungamira kune akasiyana maitiro ekuomesa uye zvishandiso.Parizvino, pane kunyanya marudzi maviri ezvinonyungudutsa anoshandiswa mukunyorova kusanganisa nzira: non-aqueous solvents, kureva organic solvents senge ethanol, acetone, nezvimwewo;Mvura inonyungudutsa.Midziyo yekuomesa yekusanganiswa kwemvura ye lithium-ion bhatiri cathode zvinhu zvinonyanya zvinosanganisira: vacuum rotary dryer, vacuum rake dryer, spray dryer, vacuum bhandi dryer.
Iko kugadzirwa kwemaindasitiri kwezvinhu zvecathode zvemabhatiri e-lithium-ion kazhinji kunotora yakakwirira-tembiricha yakasimba-state sintering synthesis process, uye musimboti wayo uye kiyi midziyo ndeye sintering kiln.Zvinhu zvakasvibirira zvekugadzira lithium-ion bhatiri cathode zvinhu zvakasanganiswa uye zvakaomeswa, zvozoiswa muchoto kuti zvipise, zvozoburutswa kubva muchoto kupinda mukupwanya uye kurongedza.Pakugadzirwa kwezvinhu zvecathode, zviratidziro zvehunyanzvi uye zvehupfumi senge tembiricha yekudzora tembiricha, kufanana kwekushisa, kutonga kwemhepo uye kufanana, kuenderera, kugona kwekugadzira, kushandiswa kwesimba uye otomatiki degree remoto zvakakosha.Parizvino, iyo huru sintering midziyo inoshandiswa mukugadzira zvinhu zvecathode ndeye pusher kiln, roller kiln uye bell jar.
◼ Roller kiln imbishi yepakati nepakati inogara ichidziya uye ichipisa.
◼ Zvinoenderana nemamiriro ekunze echoto, sechoto yekupusher, honi inomonereka yakakamurwawo kuita honi yemhepo uye mumhepo.
- Air kiln: inonyanya kushandiswa kugadzira sintering zvinhu zvinoda oxidizing mamiriro ekunze, senge lithium manganate zvinhu, lithium cobalt oxide zvinhu, ternary zvinhu, nezvimwe;
- Atmosphere kiln: inonyanya kushandiswa kuNCA ternary zvinhu, lithium iron phosphate (LFP) zvinhu, graphite anode zvinhu uye zvimwe sintering zvinhu zvinoda mhepo (senge N2 kana O2) gasi kuchengetedzwa.
◼ Honi inomonereka inotora tambo yekukweshana, saka kureba kwechoto hakukanganiswe nesimba rekumhanyisa.Nematauriro, inogona kuva isingaperi.Hunhu hwehuni mhango chimiro, zvirinani kuenderana kana kupfura zvigadzirwa, uye hombe hombe mhango chimiro chinowedzera kufambiswa kwekuyerera kwemhepo muchoto uye dhiraivha uye rabha kubuda kwezvigadzirwa.Ndiyo midziyo inosarudzirwa kutsiva iyo pusher kiln kuti inyatsoona kugadzirwa kwakakura.
◼ Parizvino, lithium cobalt oxide, ternary, lithium manganate uye zvimwe zvinhu zvecathode zve lithium-ion mabhatiri zvakanyungudutswa mumoto wemhepo, nepo lithium iron phosphate inoputirwa mumoto unodzivirirwa nenitrogen, uye NCA inoputirwa mu roller. honi inodzivirirwa neokisijeni.
Negative Electrode Material
Matanho makuru ekutanga kuyerera kweiyo artificial graphite anosanganisira pretreatment, pyrolysis, kugaya bhora, graphitization (kureva, kupisa kupisa, kuitira kuti maatomu ekabhoni akakanganiswa arongedzwe zvakanaka, uye makiyi ehunyanzvi link), kusanganisa, kupfekedza, kusanganisa. kuongorora, kuyera, kurongedza uye kuchengetedza.Kushanda kwese kwakanaka uye kwakaoma.
◼ Granulation yakakamurwa kuita pyrolysis maitiro uye bhora milling yekuongorora maitiro.
Mukuita pyrolysis, isa zvinhu zvepakati 1 mureactor, chinja mweya mureactor neN2, simbisa reactor, uchipisa nemagetsi zvinoenderana ne tembiricha curve, kurunga pa200 ~ 300 ℃ kwe1 ~ 3h, woenderera mberi. kuipisa kusvika ku400 ~ 500 ℃, kurunga kuti uwane zvinhu zvine particle size ye10 ~ 20mm, kuderedza tembiricha uye kuiburitsa kuti uwane zvinhu zvepakati. midziyo yegranulation, iyo yose ine musimboti wakafanana.Iwo ese ari maviri anozunguza kana kufamba pasi peimwe tembiricha curve kuti ashandure kuumbwa kwezvinhu uye zvemuviri nemakemikari zvimiro mureactor.Musiyano ndewekuti iyo vertical kettle isanganiswa modhi yekupisa kettle uye inotonhora kettle.Zvinhu zvinoumba muketero zvinoshandurwa nekukurudzira zvichienderana ne tembiricha curve mu kettle inopisa.Mushure mekupedzwa, inoiswa mugeti inotonhorera yekutonhodza, uye kettle inopisa inogona kudyiswa.Inoenderera mberi granulation midziyo inoona kuenderera kushanda, ine yakaderera simba rekushandisa uye yakakwira kubuda.
◼ Carbonization uye graphitization chikamu chakakosha.Iyo carbonization furnace carbonizes zvinhu zviri pakati nepakati tembiricha.Kupisa kwechoto che carbonization kunogona kusvika 1600 degrees Celsius, iyo inogona kusangana nezvinodiwa zve carbonization.Iyo yakakwirira-chaiyo yakangwara tembiricha controller uye otomatiki PLC yekutarisa sisitimu ichaita iyo data inogadzirwa muiyo carbonization process kunyatsodzorwa.
Graphitization choto, kusanganisira yakachinjika yakakwirira-tembiricha, yakaderera kuburitsa, yakatwasuka, nezvimwewo, inoisa graphite munzvimbo inopisa yegraphite (kabhoni ine nharaunda) yekunyungudika uye kunyungudika, uye tembiricha panguva ino inogona kusvika 3200 ℃.
◼ Kupfekedza
Iyo yepakati zvinhu 4 inoendeswa kune silo kuburikidza neiyo otomatiki yekufambisa sisitimu, uye zvinhu zvacho zvinozadzwa otomatiki mubhokisi promethium neane manipulator.Iyo otomatiki yekufambisa sisitimu inotakura bhokisi promethium kune inoenderera reactor (roller kiln) yekuputira, Tora iyo yepakati zvinhu 5 (pasi pekuchengetedzwa kwenitrogen, zvinhu zvinopisa kusvika 1150 ℃ zvinoenderana neimwe tembiricha yekukwira kwe8 ~ 10h. Nzira yekupisa ndeyekupisa midziyo kuburikidza nemagetsi, uye nzira yekupisa haina kunanga condense, uye crystal morphology inoshandurwa (amorphous state inoshandurwa kuita crystalline state), Yakarongedzerwa microcrystalline carbon layer inoumbwa pamusoro pezvakasikwa spherical graphite particles, uye pakupedzisira yakavharwa graphite sechinhu chine "core-shell" chimiro. akawana