Lithium-ion Battery chungchang hriat hmasakna
Lithium-ion Battery hnathawh dan tur
Lithium-ion battery hi a tlangpuiin positive electrode, negative electrode, lithium ion conduct thei electrolyte leh aseparator tih a nileh positive leh negative electrode thliar hrangtu casing te a awm bawk. Positive electrode material hi a tlangpuiin lithium ion, lithium cobalt oxide (LiCoO2), lithium nickel oxide (LiNiO2), lithium manganese oxide (LiMn2O4), emaw ternary materials te chu reversible insertion leh extraction theihna tur compound a ni (LiCo2NiᵧMn1100) tih a ni. Electrolyte hi lithium salt (lithium salt tlanglawn zingah LiClO4, LiPF3, LiBF4, LiBOB, etc.) te chu solvent bik (a bik takin ethylene carbonate (EC), diethyl carbonate (DEC), dimethyl carbonate (DMC), propylene carbonate (PC), etc., proportion engemaw zat inzawmkhawma tihthianghlim a ni. Separator material hi a tlangpuiin polyolefin resin a ni a, a tlangpuiin single-layer emaw multi-layer polypropylene (PP) leh polyethylene (PE) microporous membrane, Celgard 2300 separator ang chi hman a ni. Negative electrode hian lithium intercalation thei thil a hmang tlangpui a, chu chu petroleum coke, pure graphite, leh layered graphite mixed carbon te hi a ni. Lithium-ion battery-a carbon (C7) chu negative electrode atan leh transition metal oxide LiMeO2 chu positive electrode atan hmanga reaction chu a hnuaia mi ang hian a ni.
Charging lai hian:
Discharge chhung hian:
Charging lai hian positive electrode atang hian lithium ion a chhuak a, negative electrode ah a lut a; discharge lai hian negative electrode atang hian lithium ion a chhuak a, positive electrode ah a dah lut thin. Phên dangin sawi ila, charging leh discharging lai hian lithium ion te chu positive leh negative electrode inkarah an kal leh zel a, rocking chair ang maiin an kal leh thin. Chuvangin lithium-ion battery hi "rocking chair battery" an ti bawk. An hnathawh dan chu Figure 1.1 atang hian kan hmu thei ang.
Charge leh discharge condition pangngaiah chuan layered carbon material leh oxide particle inkar emaw, lithium-ion battery-a layer inkar emaw lithium ion dah leh lakchhuah hian a tlangpuiin interlayer spacing a tidanglam chauh a, crystal structure a tichhe lo. Charge leh discharge lai hian positive leh negative electrode material-te chemical structure chu a bul berah chuan a danglam lo. Chuvangin, charge-discharge reaction reversibility thlirna atang chuan battery materials-a lithium ion dah leh lakchhuah hi reaction process tha tak a ni. Heng mizia atanga thlir chuan lithium-ion battery te hi nickel-cadmium leh nickel-metal hydride battery te aiin an thawk tha zawk a ni.
Lithium-ion battery chi hrang hrang
Lithium-ion battery hi cathode material hman dan, a lan dan leh a lian zawng, cell siam dan, a bungrua chi hrang hrang, leh a hman dan azirin thliar hran theih a ni.
Cathode material hman dan azirin lithium-ion battery te hi lithium cobalt oxide battery, lithium manganese oxide battery, ternary lithium battery, leh lithium iron phosphate battery ah te then theih a ni.
Lithium cobalt oxide battery hian nominal voltage 3.7V a nei a, operating voltage range 2.4~4.2V a nei bawk. Lithium cobalt oxide battery te hian structure nghet tak an nei a, specific capacity sang tak an nei a, overall performance pawh a tha hle a, mahse an himna a tha lo va, an man pawh a to hle a, a bik takin cell tenau leh lian lo-sized-ah te hman a ni. Tun hnaiah hian high-voltage lithium cobalt oxide materials an siam chhuak a, hei hian battery upper limit voltage chu 4.3V emaw 4.35V emaw-ah a tisang thei a, chu chuan battery capacity leh energy density chu nasa takin a tisang thei a ni. Tunah hian lithium cobalt oxide battery hian volumetric energy density sang ber a nei a, 550Wh/kg a tling a, hei vang hian high-end mobile phone leh electronic product dangte power pekna atana duhthlan tur awmchhun a ni.
Lithium manganese oxide (MMANO) battery hian nominal voltage 3.8V a nei a, operating voltage range chu 2.5V atanga 4.2V a ni. Overcharge venna voltage chu 4.28V ± 0.025V a ni a, over-discharge venna voltage chu 2.5V ± 0.1V a ni. MMANO battery hi a man tlawm-a man a ni a, himna tha tak a nei bawk. Mahse, lithium manganese oxide material ngei pawh hi a nghet lo va, a chhe thei hle a, gas a siam a, a hring bawk. A cycle life hi a chhe rang hle a, a dam chhung pawh a tawi hle a, a high-temperature performance pawh a tha lo hle. Power battery siamna atana man tlawm-cost, medium-to{17}}large-sized cell-ah hman a ni ber.
Ternary lithium-ion (TLC) battery hian nominal voltage 3.6V a nei a, operating voltage range chu 2.75V atanga 4.2V a ni. Overcharge venna voltage chu 4.28V ± 0.025V a ni a, over-discharge venna voltage chu 2.75V ± 0.1V a ni. TLC battery hian overall performance tha tak a nei a, lithium cobalt oxide (LCO) aiin a man tlawm zawk a, himna tha zawk a pe bawk. Power battery-ah pawh hman theih a ni a, cathode material market-ah pawh kum tin an market share a pung zel a ni. Ternary lithium-ion material hmanga lithium-ion battery te chu zawi zawiin market-in a pawm chho ta a ni. Ternary materials te hi steel-cased, aluminum-cased, pouch, polymer, leh cylindrical lithium-ion battery-a hman tur lithium cobalt oxide leh lithium manganese oxide te nen pawh blend theih a ni a, hei hian battery man nasa takin a tihhniam thei a, overall performance a ti tha thei bawk. Tunah hian ternary material battery hian energy density 180 Wh/kg (26650 steel-cased battery hian 90g rit nen 4600 mAh/kg a pe thei a), hei hian cost-effectiveness-ah advantage chiang tak a pe thei a ni.
Lithium iron phosphate (LFP) battery hian nominal voltage 3.2V a nei a, operating voltage range chu 2.5~3.75V a ni. Overcharge venna voltage chu 3.75V±0.025V a ni a, over-discharge venna voltage chu 2.5V±0.1V a ni. LFP battery thatna lian ber chu positive electrode material stability leh non-decomposition a ni a, hei hian positive electrode material system dang nena khaikhin chuan himna danglam bik a pe a ni. LFP battery hian cycle life rei tak a nei a, resources a tam a, environment tichhe lo a ni. Mahse, discharge platform hniam tak leh low-temperature performance tha lo tak an nei thung.
A lan dan leh a lian leh te a zirin lithium-ion battery te hi cylindrical battery leh prismatic battery, etc. ah then theih a ni.
Cell siam dan a zirin lithium-ion battery hi hliam battery (cylindrical wound leh flat wound), stacked battery, etc. ah then theih a ni.
Packaging material chi a zirin lithium-ion battery hi steel-cased battery, aluminum-cased battery, plastic-cased battery, soft-pack battery, etc. ah then theih a ni.
Application characteristic a zirin lithium-ion battery hi high-temperature battery, low-temperature battery, power battery, leh capacity battery, etc. ah then theih a ni.
An hmanna hmun a zirin lithium-ion battery te hi hetiang hian then theih a ni: backup battery, power battery, leh energy storage battery te.
Lithium-ion Battery hman dan
Battery siam chhuah a nih atang khan battery product dang lithium-ion battery angin rang leh zau taka hman a la ni lo tih sawi theih a ni. Computer CPU-a clock power supply aṭanga motor leh tuihnuai lawnga hman ṭhin lithium-ion battery pack lian tak takte thlengin, capacity danglamna chu a let maktaduai 10 chuang a ni. Nitin nunah, damdawi hmanrua, electric lirthei, energy dahkhawmna power station, aerospace, leh sipaiah te hmanna zau tak an nei a ni.
Kum 10 chuang zet a lar chhoh hnuah lithium-ion battery hi digital product mobile phone leh laptop-a hman lar tak power system awmchhun a ni ta a ni. Specific energy sang tak an neih avangin power tools, electric bicycle, electric bus, thli leh ni chakna khawlkhawmna power station, mobile communication base station, mining lamp power supply, mining rescue capsule power supply, sipai mimal sipai power supply, radio, satellite battery, leh thil dang tam takah pawh an hmang nasa hle bawk. Statistics atanga a lan danin, kum 2011 khan China rama lithium battery industry market size chu yuan tluklehdingawn 39.7 a tling a, kum khat-kum-a pung chu 43% a ni a, kum khata lithium battery siamchhuah chu unit tluklehdingawn 2.97 a tling a, kum khat-kum khata-kum khata pung chu 28.6% a ni. Lithium battery industry hi ram economy21-a industrial direction pawimawh tak a lo ni ta a ni.
