ʻO ke ʻano o ka hoʻomākaukau ʻana o nā mea electrode maikaʻi lithium iron phosphate

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Loaʻa ka Lithium iron phosphate ma ke ʻano o ka phosphate lithium ore ma ke ʻano, he ʻano olivine hoʻonohonoho. Lithium phosphate chemical molecular formula: LIMPO4, kahi lithium maikaʻi; ʻo ka hao waena he kumu kūʻai maikaʻi; ʻO ka phosphate he ʻekolu kumu kūʻai maikaʻi ʻole, hoʻohana pinepine ʻia e like me ke ʻano o ka pākaukau lithium. ʻO ka hoʻohana ʻana i nā pākaukau lithium iron phosphate: nā mea mālama ikehu, nā mea uila, nā kaʻa uila māmā, nā kaʻa uila nui, nā mea liʻiliʻi a me ka mana kelepona, me ka lithium iron phosphate me nā kaʻa uila uila hou no 45% o ka nui o ka phosphite.

ʻO ka lua, ʻo ka lithium iron phosphate ma ke ʻano he lithium electrode mea i hoʻohālikelike ʻia me nā mea ʻē aʻe lithium pākaukau maikaʻi, ʻoi aku ka palekana o ka hale olivine, ʻoi aku ka maikaʻi o ka nohona, ʻoi aku ka maikaʻi, ka lōʻihi, ka hana wela kiʻekiʻe, a me nā mea ʻē aʻe. ʻO ka hana palekana he kī PO paʻa i loko o nā kristal phosphate kiʻekiʻe, paʻakikī ke hoʻoheheʻe ʻia, ʻaʻole ia e hiolo a hoʻoulu ʻia i nā oxides ikaika i ka wā overcharge a me nā wela kiʻekiʻe.

ʻO ke ola kaʻapuni ʻana ma kahi o 300 mau manawa lōʻihi o ka pōʻaiapili pākīpika lead-acid, ʻo ke ola lawelawe ma waena o 1 a me 1.5 mau makahiki. A hiki i ka helu o ka lithium iron phosphate pākaukau ke hiki aku ma mua o 2,000, theoretically hoʻohana i ke ola o 7-8 mau makahiki.

ʻO ka hana wela kiʻekiʻe he kiʻekiʻe-mehana hao-free phosphate thermal peaks a hiki i 350 ° C a 500 ° C, aʻo ka lithium mangananate a me ka lithium cobaltate ma kahi o 200 ° C wale nō. Manaʻo ʻia ka pākaukau lithium iron phosphate pili i ke kaiapuni ʻaʻole i loko o nā metala kaumaha a me nā metala kakaʻikahi, ʻaʻohe mea ʻawaʻawa, ʻaʻole hoʻohaumia ʻole, ʻo ia kahi pākaukau ʻōmaʻomaʻo maoli. ʻOkoʻa ka hana a me ka hoʻokuʻu ʻana o ka lithium iron phosphate ma ke ʻano he mea electrode maikaʻi mai nā mea maʻamau ʻē aʻe, a ʻo ka hoʻopiʻi a me ka hoʻokuʻu ʻana o ka electrochemical e hōʻike ana i nā ʻāpana ʻelua o ka lithium hao phosphate, ʻo ka hoʻopiʻi a me ka hoʻokuʻu ʻana penei: hoʻopiʻi hoʻopiʻi: Hoʻokuʻu i ka hopena: Charge, Li + Mai LifePO4, Fe2 + nalowale kahi electron i FE3 +; ke hoʻokuʻu ʻia, hoʻokomo ʻia ʻo Li + i loko o ka hao phosphite i loko o LifePo4.

Loaʻa ka hoʻololi o Li + i loko o ka interface Lifepo4 / Fepo4, no laila ua pālahalaha loa ka pihi hoʻopiʻi a me ka hoʻokuʻu ʻana, ʻoi aku ka paʻa o ka hiki, kūpono no nā mea electrode. ʻO ke kolu,ʻo ka hoʻomākaukauʻana i ka lithium iron phosphate ka hoʻomākaukauʻana i nā mea me ka lithium iron phosphate. ʻO kekahi kumu lithium maʻamau, kumu hao, kumu kalapona, a me nā kumu phosphorus penei: ʻO ka hoʻomākaukau ʻana i ka pauka lithium hao phosphate hiki ke hoʻopili i kāna hana ma ke ʻano he mea maikaʻi.

Nui nā ʻano hana no ka hoʻomākaukau ʻana i ka lithium iron phosphate, e like me ke kiʻekiʻe wela o ka hopena paʻa paʻa, carbon thermal reduction method, a me unminerated hydrothermal method, spray thermal solution, sol-gel method, total precipitation method, etc. 1. ʻO ke ʻano o ka hoʻoulu ʻana i ka mahana paʻa paʻa kiʻekiʻe ʻo ka hoʻomākaukau ʻana i ka lithium iron phosphate ka hoʻomohala ʻoi loa o ka hoʻomohala ʻana i kēia manawa a me ke ʻano hoʻohana nui loa.

Ma hope o ka hao kumu, lithium kumu, phosphorus kumu ua hui pu me ka kemika mika ma mua o uniformly hui pu ia, i loko o ka inert lewa, mua sintered 5 a 10 h ma ka haʻahaʻa wela (300 ~ 350 ° C), no laila, i ka mea maka ua mua decomposed, a laila ma ke kiʻekiʻe wela (600 ~ 800 ° C) Sintering 10 ~ phosphate iron type. He mea maʻalahi ke kaʻina hana o ka lithium iron phosphate, ʻo ka hemahema ka nui o ka kristal, ʻaʻole maʻalahi ke anawaena, ʻaʻole like ka hāʻawi ʻana, ʻaʻole maʻamau ke ʻano, ʻilihune ka pae huahana. 2.

Carbonatic thermal reduction method carbon thermal reduction method is to add carbon source (starch, sucrose, etc.) in raw material mixing, commonly used together with high temperature solid phase, and the carbon source can reduce Fe3 + in high temperature calcination to Fe2 +, E pale i ka hopena i ka manawa o ka hopena e lilo i Fe3 +, no laila, ʻoi aku ke kūpono o ke kaʻina hana synthesis, akā ʻoi aku ka lōʻihi o ka mana o ka hopena. 3.

ʻO ka spray pyrolysis spray heat solution kahi ala kūpono e loaʻa ai ka nui o nā ʻāpana like ʻole a me ke ʻano maʻamau o ka pauka lithium hao phosphate. Hoʻokomo ʻia ka precursor i kahi reactor o 450 a 650 ° C me ke kinoea halihali, a loaʻa ka lithium iron phosphate ma hope o nā hopena wela kiʻekiʻe. ʻO ka precursor fog spherical spherical spheroid i hoʻomākaukau ʻia e ka spray pyrolysis he kiʻekiʻe, a ʻo ka hāʻawi like ʻana o ka nui o ka ʻāpana.

Ma hope o nā hopena wela kiʻekiʻe, loaʻa ka pneumophosphate. ʻO ka lithium iron phosphate sphere he mea kūpono i ka hoʻonui ʻana i ka ʻāpana kikoʻī o ka mea, e hoʻonui ana i ka ikehu ratio o ka mea. 4.

ʻO ke ʻano o ka hoʻomehana wai he ʻano hana synthesis wai, e pili ana i ka hopena kemika i loko o kahi pahu paʻi i hoʻopaʻa ʻia i loko o kahi moku kaomi i hoʻopaʻa ʻia, a ua hoʻopili ʻia e ka mea maka, holoi ʻia e ka kānana, maloʻo ma hope o ka maloʻo ʻana. Hiki ke loaʻa ka Lithium iron phosphate ma hope o ka calcined ʻana o ka wela kiʻekiʻe. ʻO ka hoʻomākaukau ʻana i ka ferrite ma ke ʻano hydrothermal ka maikaʻi o ka mana maʻalahi o ke ʻano crystalline a me ka nui o ka nui, ka awelika o ke anawaena, ka liʻiliʻi liʻiliʻi, ke kaʻina maʻalahi, akā pono ke kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe puʻe lako, kiʻekiʻe kumu kūʻai, paʻakikī kaʻina hana paʻakikī.

Ma waho aʻe o ke ʻano o luna, aia kahi ʻano ua maʻamau, kahi ʻano sol-gel, kahi ʻano hoʻohaʻahaʻa oxidative, kahi ʻano hoʻomaloʻo emulsified, a me kahi ʻano sintering microwave. 4. Hōʻuluʻulu Manaʻo ʻOiai ʻoi aku ka nui o ke ʻano o ka hoʻomākaukau ʻana o ka lithium iron phosphate, koe wale nō ke ʻano o ke ʻano hoʻohālikelike paʻa paʻa kiʻekiʻe, ʻo ka hapa nui o ka pae noiʻi keʻena.

Me ka hoʻomau mau ʻana o ka hoʻomākaukau ʻana a me ka hoʻololi ʻana o ka phosphate, e wikiwiki mau ka wikiwiki o ka ʻoihana ferrite phosphate. No ke aʻo ʻana i ka holomua o ka mea hou loa o ka lithium iron-ion battery positive material, e ʻoluʻolu e kākau inoa no ka 2017 Energy Particle Material Preparation and Testing Technology Seminar ma ʻOkakopa 16-17! I kēlā manawa, Kumu, Kumu, Hu Guorong, Central South University, e kaʻana like i ka hōʻike o "Lithium-Ion Battery Positive Code Material Lithium Lithium Lithium Industrialization". Hope Luna Hoʻokele o ka Institute of Metallurgy and Environment, Central South University, Hope Luna Hoʻokele o ka Institute of Technology, Department of Advanced Battery, Department of Engineering, Kina, China Chemistry and Physical Power Association, China Lithium Battery Association, International Power Supply Commission, Lithium Battery Communication Committee.

Hoʻohana nui ʻia i ka manaʻo electrochemical a me ka noi, nā mea ikehu a me nā ʻano ʻē aʻe, a ua hoʻokō i nā hopena protruding i ka hoʻomohala ʻana a me ka hana ʻana o nā mea electrode maikaʻi i ka pā lithium-ion. Hoʻopaʻa a komo i nā papahana noiʻi ʻepekema ʻoi aku ma mua o 20 a me ka panalāʻau, me kahi papahana kūikawā o ka ʻoihana nui o ka National Development and Reform Commission, kekahi o ka National Science and Technology Department of 863, ke kuleana no ka papahana ʻepekema a me ka ʻenehana kākoʻo papahana, kahi papahana hoʻolālā kukui aupuni Nā mea a me nā papahana ʻepekema a me ka ʻenehana nui ma Hunan Province. Ua hoʻokō ʻia nā hopena kūwaho i ka hana ʻana o ka lithium-ion battery positive electrode material, a me ka hoʻomaopopo pono ʻana i ke kino o ka lithium cobalt, lithium manganate a me ka lithium iron phosphate.

E pili ana i ka 2017 Energy Granular Material Preparation and Testing Technology Seminar Ke manaʻo nei kēia hālāwai e hoʻolako i nā kahua kamaʻilio no nā haumāna kūpono ma ka home a me nā ʻāina ʻē, i ka noi ʻana i nā granules ikehu, hoʻoikaika i ka hoʻololi ʻike ʻoihana, lithium battery, capacitor, fuel cell . Mea hoʻonohonoho: China Particle Society Energy Granular Materials Committee, China Powdered Network Association Unit: Nuremberg Exhibition (Shanghai) Co., Ltd.

Nā ʻāpana kākoʻo: Kawaguklang (Shanghai) Powder Machinery Co., Ltd., Dandong Baite Instrument Co.

, Ltd. ʻO Jiangsu Miyou Powder New Equipment Manufacturing Co., Ltd.

Kākoʻo Unit: Ningbo Materials Technology and Engineering Institute, Chinese Academy of Science, Institute of Process Engineering, Tsinghua University, Institute of Physics, Chinese Academy of Sciences, Kina Academy of Science Dalian Chemical Physics, China Battery Industry Association, China Super Capacitor Industry Alliance, Dongguan Yifu Machinery Technology Co., Ltd., Shijiazhuang Day Powder Equipment Technology Co.

, Ltd., Jiangsu Highway Intelligent Equipment Co., Ltd.

, Linyi County Chasing RMB Co., Ltd., Guangzhou Zhonghuo Intelligent Equipment Co.

, Ltd. , Shenzhen Boyi Chemical Machinery Co., Ltd.

, Malvin Instrument Co., Ltd., Xinxiang Yangli Machinery Co.

, Ltd. ʻO ke kihi o ka hoʻomākaukau, e nānā i nā pono a me nā pōʻino o nā mea ikehu kumu e like me nā pā lithium, nā pā sodium, supercapacitors, nā wahie; nā mea koʻikoʻi 3:, no ka laʻana, ʻenehana hou (e like me graphene, carbon nanotubes, ternary lithium electrode, sodium ion battery electrodes, Metal lithium) ʻenehana a me kāna noi i ka mālama ʻana i ka ikehu a me nā ʻoihana hoʻololi; nā mea koʻikoʻi 4: Nā hana ʻenehana hou loa o nā granules ikehu a me nā alakaʻi ʻoihana; nā mea koʻikoʻi ʻelima: nā hōʻikeʻike a me nā hālāwai kūkā, nā mea uila lithium, nā lako hana supercapacitor, ʻenehana ʻike a me ka noi ʻana i kahi hōʻike hoʻokahi. Manaʻo 6: Ke kau ʻana o ka papahana.

ʻO nā pākahi lithium home, nā ʻoihana hana hana lithium-electric, alakaʻi papahana hou, ke kūʻai ʻana i ke kūkākūkā kūkākūkā kūkākūkā. .