A positive-electrode active material contains a lithium composite oxide containing at least one selected from the group consisting of F, Cl, N, and S. The crystal structure of the lithium composite oxide belongs to a space group C2/m. An XRD pattern of the lithium composite oxide comprises a first peak within the first range of 44 degrees to 46 degrees of a diffraction angle 2θ and a second peak within the second range of 18 degrees to 20 degrees of the diffraction angle 2θ. The ratio of the second integrated intensity of the second peak to the first integrated intensity of the first peak is within a range of 0.05 to 0.90.

The present disclosure describes various types of batteries, including lithium-ion batteries having an anode assembly comprising: an anode comprising a first porous ceramic matrix having pores; and a ceramic separator layer affixed directly or indirectly to the anode; a cathode; an anode-side current collector contacting the anode; and anode active material comprising lithium located within the pores or cathode active material located within the cathode; wherein, the ceramic separator layer is located between the anode and the cathode, no electrically conductive coating on the pores contacts the separator layer, and in a fully charged state, lithium active material in the anode does not contact the separator layer. Also disclosed are methods of making and methods of using such batteries.

The present disclosure describes various types of batteries, including lithium-ion batteries having an anode assembly comprising: an anode comprising a first porous ceramic matrix having pores; and a ceramic separator layer affixed directly or indirectly to the anode; a cathode; an anode-side current collector contacting the anode; and anode active material comprising lithium located within the pores or cathode active material located within the cathode; wherein, the ceramic separator layer is located between the anode and the cathode, no electrically conductive coating on the pores contacts the separator layer, and in a fully charged state, lithium active material in the anode does not contact the separator layer. Also disclosed are methods of making and methods of using such batteries.

A liquid composition is for use to feed carrier ions to a non-aqueous electrolyte secondary battery. The liquid composition includes a solvent and a dissolved substance. The dissolved substance includes an ionic compound. The ionic compound consists of a radical anion of an aromatic compound and a metal cation. The aromatic compound is a polyacene or a polyphenyl. The metal cation is an ion of the same type as the carrier ions.

A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a lithium-nickel composite oxide. A first O1s spectrum, a second O1s spectrum, a b1s spectrum, a S2p spectrum, a F1s spectrum, and a Ni3p spectrum are detectable by a surface analysis of the positive electrode by X-ray photoelectron spectroscopy. The first O1s spectrum has a peak within a range of binding energy that is greater than or equal to 528 eV and less than or equal to 531 eV. The second O1s spectrum has a peak within a range of binding energy that is greater than 531 eV and less than or equal to 535 eV.

A method for manufacturing a lithium-ion microbattery having a capacity not exceeding 1 mAh, implementing a method for manufacturing an assembly comprising a porous electrode and a porous separator comprising a porous layer deposited on a substrate having a porosity comprised between 20% and 60% by volume, and pores with an average diameter of less than 50 nm. The separator comprises a porous inorganic layer deposited on the electrode, the porous inorganic layer having a porosity comprised between 20% and 60% by volume, and pores with an average diameter of less than 50 nm.

The disclosure discloses an electrolyte and an electrochemical device thereof, and an electronic device. The electrolyte includes a compound represented by formula (I):

##STR00001##

wherein R.sub.1, R.sub.3, and R.sub.4 are each independently selected from hydrogen, a cyano group, a substituted or unsubstituted C.sub.1-12 hydrocarbon group, a substituted or unsubstituted C.sub.1-12 carboxy group, a substituted or unsubstituted C.sub.6-26 aryl group, a substituted or unsubstituted C.sub.2-12 amide group, a substituted or unsubstituted C.sub.0-12 phosphate group, a substituted or unsubstituted C.sub.0-12 sulfonyl group, a substituted or unsubstituted C.sub.0-12 siloxy group or a substituted or unsubstituted C.sub.0-12 boronate group, when being substituted, a substituent includes a halogen atom. The electrolyte of the disclosure may improve the high-temperature cycle performance and room-temperature cycle performance while reducing the internal resistance of the electrochemical device.

The disclosure discloses an electrolyte and an electrochemical device thereof, and an electronic device. The electrolyte includes a compound represented by formula (I):

##STR00001##

wherein R.sub.1, R.sub.3, and R.sub.4 are each independently selected from hydrogen, a cyano group, a substituted or unsubstituted C.sub.1-12 hydrocarbon group, a substituted or unsubstituted C.sub.1-12 carboxy group, a substituted or unsubstituted C.sub.6-26 aryl group, a substituted or unsubstituted C.sub.2-12 amide group, a substituted or unsubstituted C.sub.0-12 phosphate group, a substituted or unsubstituted C.sub.0-12 sulfonyl group, a substituted or unsubstituted C.sub.0-12 siloxy group or a substituted or unsubstituted C.sub.0-12 boronate group, when being substituted, a substituent includes a halogen atom. The electrolyte of the disclosure may improve the high-temperature cycle performance and room-temperature cycle performance while reducing the internal resistance of the electrochemical device.

Provided is a sealant for a non-aqueous electrolyte solution battery that can form a sealant layer having excellent adhesiveness with respect to a metal surface. The sealant for a non-aqueous electrolyte solution battery contains a non-polar polymer and a nitrogen-containing heterocyclic compound. The proportional content of the nitrogen-containing heterocyclic compound is preferably not less than 0.01 mass % and not more than 5 mass %.

This application provides a positive active material, a positive electrode plate, an electrochemical energy storage apparatus, and an apparatus. The positive active material is Li.sub.xNi.sub.yCo.sub.zM.sub.kMe.sub.pO.sub.rA.sub.m, or Li.sub.xNi.sub.yCo.sub.zM.sub.kMe.sub.pO.sub.rA.sub.m with a coating layer on its surface; and the positive active material is single crystal or quasi-single crystal particles, and a particle size D.sub.n10 of the positive active material satisfies: 0.3 μm≤D.sub.n10≤2 μm. In this application, particle morphology of the positive active material and an amount of micro powder in the positive active material are properly controlled, to effectively reduce side reactions between the positive active material and an electrolyte solution, decrease gas production of the electrochemical energy storage apparatus, and improve storage performance of the electrochemical energy storage apparatus without deteriorating an energy density, cycle performance, and rate performance of the electrochemical energy storage apparatus.