Hoʻohana i ka Sodium Carboxymethyl Cellulose i loko o ka wai ʻole Electrolyte Secondary Battery

ʻO ka sodium carboxymethyl cellulose (NaCMC) he mea hoʻoheheʻe wai, kiʻekiʻe molecular kaumaha polymer i loaʻa mai ka cellulose. ʻO kona mau mea kūikawā, e like me ka paʻaʻana o ka wai kiʻekiʻe, ka mana hana kiʻiʻoniʻoni maikaʻi, a me ka paʻa maikaʻi, e lilo ia i mea waiwai nui i nāʻanoʻoihanaʻoihana. I nā makahiki i hala iho nei, ua puka mai ʻo NaCMC ma ke ʻano he moho hoʻohiki no ka hoʻohana ʻana i nā pākahi lua electrolyte non-aqueous ma muli o kona hiki ke hoʻomaikaʻi i ka hana pākaukau a me ka palekana. Ma kēia ʻatikala, e kūkākūkā mākou i ka hoʻohana ʻana o NaCMC i nā ʻeke lua electrolyte non-aqueous.

Hoʻohana nui ʻia nā pākahi lua electrolyte non-aqueous i nā mea uila uila, nā kaʻa uila, a me nā ʻōnaehana mālama ikehu ma muli o ko lākou kiʻekiʻe ikehu kiʻekiʻe a me ke ola pōʻai lōʻihi. Eia nō naʻe, ʻo ka hoʻohana ʻana i nā electrolytes non-aqueous ke kau nei i kekahi mau pilikia palekana, e like me ka instability thermal, flammability, a me ka leakage. Ua hōʻike ʻia ʻo NaCMC e hoʻoponopono i kēia mau pilikia ma o ka hoʻomaikaʻi ʻana i ka palekana a me ka hana ʻana o nā pākahi lua electrolyte non-aqueous.

1. Electrolyte stability: He mea koʻikoʻi ka paʻa o ka electrolyte i ka hana a me ka palekana o ka pākaukau. Hiki i ka NaCMC ke hoʻomaikaʻi i ka paʻa o ka electrolyte ma o ka hoʻohaʻahaʻa ʻana i kona helu evaporation, pale i ka leakage, a me ka hoʻonui ʻana i ka viscosity o ka electrolyte. Hiki i ka hoʻohui ʻana o NaCMC ke hōʻemi i ka decomposition o ka electrolyte a hoʻonui i kona kūpaʻa wela.
2. Ion conduction: NaCMC hiki ke hoʻomaikaʻi i ka ion conduction o ka electrolyte ma ka hana ʻana i kahi pūnaewele e like me ka gel e hoʻomaʻamaʻa i ka lawe ʻana i nā ion lithium ma waena o nā electrodes. Loaʻa kēia i ka hoʻomaikaʻi ʻana i ka hana pākaukau a me ke ola pōʻai lōʻihi.
3. Ka palekana o ka pākaukau: Hiki i ka NaCMC ke hoʻomaikaʻi i ka palekana o ka pākaukau ma ka pale ʻana i ka hoʻokumu ʻia ʻana o nā dendrites, ʻo ia nā ʻano like me ka nila e hiki ke ulu mai ka ʻili o ka anode a komo i ka mea hoʻokaʻawale, e alakaʻi ana i ka holo pōkole a me ka wela. Hiki i ka NaCMC ke hoʻomaikaʻi i ka mechanical stability o ka electrode a pale i kona wehe ʻana mai ka ʻohi o kēia manawa, e hōʻemi ana i ka pilikia o nā kaʻa pōkole kūloko.
4. Electrode stability: Hiki i ka NaCMC ke hoʻomaikaʻi i ke kūpaʻa o ka electrode ma ka hana ʻana i kahi uhi ʻaʻahu ma luna o kona ʻili, hiki ke pale i ka hemo ʻana o ka mea hana a hoʻemi i ka nalowale o ka hiki i ka manawa. Hiki i ka NaCMC ke hoʻomaikaʻi i ka pili ʻana o ka electrode i ka ʻohi o kēia manawa, e alakaʻi ana i ka hoʻomaikaʻi ʻana i ka conductivity a me ka hoʻemi ʻana i ke kūʻē.

I ka hopena, ʻo NaCMC kahi mea hoʻohui i hoʻohiki ʻia no ka hoʻohana ʻana i nā pākahi lua electrolyte non-aqueous ma muli o kona hiki ke hoʻomaikaʻi i ka hana pākaukau a me ka palekana. ʻO kona mau waiwai kūikawā, e like me ka paʻa ʻana o ka wai kiʻekiʻe, ka hiki ke hana kiʻiʻoniʻoni maikaʻi, a me ka paʻa maikaʻi, e hana ia i mea hoʻohui maikaʻi no ka hoʻomaikaʻi ʻana i ka paʻa a me ka conduction ion o ka electrolyte, pale i ka hoʻokumu ʻana o nā dendrites, hoʻomaikaʻi i ka mechanical stability o ka electrode, a me ka ho'ēmiʻana i ka nalowale o ka hiki i ka manawa. Hiki i ka hoʻohana ʻana i ka NaCMC ke alakaʻi i ka hoʻomohala ʻana i nā pā uila lua electrolyte ʻaʻole palekana a ʻoi aku ka maikaʻi, hiki ke loaʻa ka hopena koʻikoʻi i ka hoʻomohala ʻana o ka ʻoihana kaʻa uila a me ka ʻoihana mālama ikehu.