5 results about "Lyonium ion" patented technology

The invention relates to a pretreatment method of a solid electrolyte, the solid electrolyte comprises lithium lanthanum zirconium oxide, the pretreatment method comprises the following steps: obtaining a residual lithium reference value of lithium ions in the solid electrolyte, the residual lithium reference value being the mass percentage of the lithium ions in the solid electrolyte; adding a solid electrolyte to a solvent to obtain a hydrolysis resistant suspension, where the solvent includes isopropanol for less than 1% of the residual lithium reference value; for the residual lithium reference value larger than or equal to 1% and smaller than 3%, the solvent comprises isopropanol and water, and the mass ratio of the water to the isopropanol is (1-2): (8-9); and separating the hydrolysis-resistant suspension to obtain a hydrolysis-resistant clear liquid. In addition, the invention also provides a method for measuring the surface residual lithium value of the solid electrolyte.

The present invention relates to an electrochemical element comprising: a negative electrode comprising at least particles comprising silicon; and a positive electrode comprising, as active material: i) at least one compound LixMn1.y.zFeyMzPO4 (I), wherein M is selected from among (B, Mg, AI, Si, Ca, Ti, V, Cr, Co, Ni, Cu, Zn, Y, Zr, Nb, S, K, Pb, V, Mo, W, Hf, Bi, Se and mixtures thereof); with 0.8 ≤ x ≤ 1.2; 0.5 ≤ 1-y-z < 1; 0 < y ≤ 0.5; 0 ≤ z ≤ 0.2; ii) at least one compound Liw(NixMnyCozM't)O; (II), wherein M' is selected from among (AI, B, Mg, Si, Ca, Ti, V, Cr, Fe, Cu, Zn, Y, Zr, Nb, W, Mo, S, Sr, Ce, Ta, Ga, Nd, Pr, La and mixtures thereof); with 0.9 ≤ w ≤ 1.1; 0 < x; 0 ≤ y; 0 ≤ z; 0 ≤ t; wherein: a) the ratio (% Si / A) is such that: 0.7 ≤ (% Si / A) ≤ 4.0, (A) being the product of the content by weight of compound (I) in the positive active layer, expressed relative to the total weight of compounds (I) and (II), and the molar content of iron (%Fe) in compound (I), expressed relative to the molar content of iron and manganese in compound (I); and (%Si) being the content by weight of silicon in the active material of the negative active layer, expressed relative to the total weight of the active material of the negative active layer; and ≤ b) the ratio (N / P) between the first-charge capacity of the negative electrode and the first-charge capacity of the positive electrode is such that: 1.1 ≤ (N / P) ≤ 1.7.

Methods of treating lead poisoning are described. The methods involve administering to a patient in need thereof a therapeutically effective dose of a pharmaceutical composition comprising a particulate metal titanate ion exchanger having an empirical formula on an anhydrous basis of: AmTixMyOz where A is an exchangeable cation selected from the group consisting of potassium ion, sodium ion, lithium ion, calcium ion, magnesium ion, hydronium ion or mixtures thereof, and M is optionally at least one framework metal selected from niobium (5+), zirconium (4+), tin (4+), iron (3+), iron (2+), cobalt (2+), and manganese (2+).

This invention discloses a rapidly synthesizable chloride solid electrolyte, its preparation method, and its applications. The chloride solid electrolyte of this invention contains anions, cations, and water of crystallization, wherein the anions include Cl... ‑ and at least one of the following ions: F ‑ OH ‑ O 2‑ CO3 2‑ S 2‑ SO4 2‑ PO4 3‑ N 3‑ NO3 3‑ The cation includes Zr. 4+ Li + and at least one of the following ions: H + Ca 2+ Cu 2+ Fe 2+ Mg 2+ Zn 2+ Na + Al 3+ Zr 4+ Fe 3+ Co 2+ Ba 2+ Mn 2+ This invention prepares the chloride solid electrolyte by introducing crystalline hydrates, which improves the lithium-ion conductivity of the chloride solid electrolyte, broadens the electrochemical stability window and the thermodynamic stability potential of the electrolyte, enabling the cathode / electrolyte interface to stably transport lithium ions under high voltage (4.5 V), making it more suitable for high-capacity, high-voltage all-solid-state batteries.

A niobium-containing silver-germanium sulfide-type solid electrolyte composition with enhanced air stability and enhanced dendrite suppression is described. The niobium-containing silver-germanium sulfide-type solid electrolyte composition comprises a silver-germanium sulfide-type crystal structure and the general formula Li. 5.5 (P 1‑i Nb i (S) 4.5‑ j O j )X 1.5 Co-substituted argyrophthalite-type solid electrolyte particles, wherein: X is at least one halogen; i is in the range of 0.01 to 0.12; and j is in the range of 0.01 to 0.6. Co-substituted argyrophthalite-type solid electrolyte particles can be used in electrochemical cells, such as all-solid-state lithium-ion batteries or semi-solid-state lithium-ion batteries. In some aspects, the co-substituted particles are formed from niobium oxide, lithium sulfide, phosphorus pentasulfide, and lithium halide. Additionally or alternatively, the co-substituted particles are formed by ball milling.