A na-ejikarị usoro Electrolyte Interphase siri ike (SEI) akọwa usoro ọhụrụ e guzobere n'etiti anode na electrolyte na batrị ndị na-arụ ọrụ. Batrị ígwè lithium (Li) dị elu na-egbochi nke ukwuu site na deposition lithium dendritic nke SEI na-abụghị otu na-eduzi. Ọ bụ ezie na o nwere uru pụrụ iche n'imeziwanye otu deposition lithium, na ojiji bara uru, mmetụta nke SEI sitere na anion abụghị ihe kacha mma. N'oge na-adịbeghị anya, otu nnyocha Zhang Qiang sitere na Mahadum Tsinghua tụrụ aro iji ndị na-anabata anion gbanwee nhazi electrolyte iji wuo SEI sitere na anion siri ike. Tris(pentafluorophenyl)borane anion receptor (TPFPB) nwere atọm boron na-enweghị electron na-akpakọrịta na bis(fluorosulfonimide) anion (FSI-) iji belata nkwụsi ike nke FSI-. Na mgbakwunye, n'ihu TFPPB, ụdị ion clusters (AGG) nke FSI- na electrolyte agbanweela, FSI- na-akpakọrịta na Li+ karịa. Ya mere, a na-akwalite mmebi nke FSI- iji mepụta Li2S, a na-emekwa ka nkwụsi ike nke SEI sitere na anion ka mma.
SEI bụ ngwaahịa mbelata nke electrolyte. Nhazi na nhazi nke SEI na-achịkwakarị site na nhazi nke electrolyte, ya bụ, mmekọrịta dị n'etiti ihe mgbaze, anion, na Li+. Nhazi nke electrolyte na-agbanwe ọ bụghị naanị na ụdị ihe mgbaze na nnu lithium, kamakwa na ntinye nke nnu. N'afọ ndị na-adịbeghị anya, electrolyte dị elu (HCE) na electrolyte dị elu (LHCE) egosila uru pụrụ iche na ime ka lithium metal anodes guzosie ike site na ịmepụta SEI kwụsiri ike. Oke molar nke ihe mgbaze na nnu lithium dị ala (erughị 2) na a na-ewebata anions n'ime sheath solvation mbụ nke Li+, na-emepụta kọntaktị ion pairs (CIP) na aggregation (AGG) na HCE ma ọ bụ LHCE. Anions na HCE na LHCE na-achịkwa nhazi nke SEI, nke a na-akpọ SEI sitere na anion. N'agbanyeghị arụmọrụ mara mma ya na ime ka lithium metal anodes guzosie ike, SEI sitere na anion dị ugbu a ezughi oke iji merie ihe ịma aka nke ọnọdụ bara uru. Ya mere, ọ dị mkpa imeziwanye nkwụsi ike na otu SEI sitere na anion iji merie ihe ịma aka ndị dị n'ọnọdụ dị adị.
Anion dị n'ụdị CIP na AGG bụ ihe ndị bụ isi na-ebute ụzọ maka SEI sitere na anion. N'ozuzu, Li+ na-achịkwa usoro electrolyte nke anions n'ụzọ na-apụtaghị ìhè, n'ihi na chajị dị mma nke ihe mgbaze na molekul diluent adịghị ike ma enweghị ike ịkpakọrịta ozugbo na anions. Ya mere, a na-atụ anya atụmatụ ọhụrụ maka ịhazi nhazi nke electrolytes anionic site na ịkpakọrịta ozugbo na anions.
Oge ozi: Nọvemba-22-2021