604 results about "Solid-state battery" patented technology

This invention provides a functional lithium metal anode, its preparation method, and a solid-state battery. The lithium metal composite anode of this invention has a three-layer structure, comprising: a current collector, an active material layer, and a functional layer. The active material layer is a lithium metal and / or lithium alloy layer. The functional layer contains boron nitride nanotubes, metal-organic frameworks (MOFs), a lithium salt, and a binder. In the functional layer, the boron nitride nanotubes are nanoscale fibrous materials with high mechanical strength, providing numerous active sites, improving the ionic conductivity of the interface layer, and effectively inhibiting the growth of lithium dendrites. The MOFs material has a three-dimensional porous structure, capable of storing a large number of lithium ions and regulating lithium ion deposition. The synergistic effect of the boron nitride nanotubes loaded with MOFs material improves the compatibility of the lithium metal anode with various solid-state electrolytes, reduces the generation of side reactions, and simultaneously increases the cycle performance and lifespan of the lithium metal solid-state battery.

A solid-state battery including: a battery element; an exterior portion on an outer surface of the battery element; an external electrode in contact with the exterior portion; and Bi between the exterior portion and the external electrode, in which the exterior portion includes an oxide ceramic containing: Li; Mg; and one or more elements (M) selected from the group consisting of Group 4 and Group 5 elements.

The application discloses a battery pressurization system, a solid-state battery, a battery pack and a vehicle, and relates to the technical field of vehicles, and aims to improve the ability to control the discharge rate of a battery. The battery pressurization system comprises a shell and a pressure control device. An accommodating cavity is formed in the interior of the shell. The pressure control device is arranged in the accommodating cavity, and the pressure control device is used for filling pressure medium into the accommodating cavity to increase the internal pressure of the accommodating cavity or discharging pressure medium from the accommodating cavity to reduce the internal pressure of the accommodating cavity. According to the battery pressurization system of the application, by filling or discharging pressure medium into the accommodating cavity through the pressure control device, the pressure that the battery can bear in the accommodating cavity is controlled, so that the battery can bear sufficient pressure, the range of the controllable discharge rate of the battery is improved, and the safety performance of the battery is improved.

The present invention provides an additive material for adding to a sulfide-containing solid electrolyte material for a solid-state battery, a solid-state battery using the additive material in its solid electrolyte material, and a manufacturing method of the solid-state battery. The additive material provided in the present application allows the solid-state battery using the additive material to operate at a relatively low pressure compared to a solid-state battery not using the additive material.

The application relates to the technical field of battery packaging, in particular to an aluminum-plastic film, a preparation method thereof, a battery and an electric device. The aluminum-plastic film comprises an aluminum layer, at least part of the surface of the aluminum layer is provided with a passivation layer, and the porosity of the passivation layer is less than or equal to 10%. The aluminum-plastic film is stable in insulation performance at high temperatures and can be used for the packaging of solid-state batteries.

The present disclosure relates to an all-solid-state battery and a method of manufacturing the same, including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer stacked between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a positive electrode current collecting layer including a current collecting material and a first positive electrode active material; a first positive electrode active material layer disposed on one surface of the positive electrode current collecting layer in a stacking direction and including a second positive electrode active material; and a second positive electrode active material layer disposed on the other surface of the positive electrode current collecting layer in a stacking direction and including a second positive electrode active material.

The utility model provides a kind of solid-state battery in-situ measuring device and its tabletting tool, the middle part of the shell of measuring device is equipped with through-hole, the rear section hole cavity of through-hole contains battery sample assembly;First electrode is inserted in through-hole, and there is second electrode on the shell of the rear end of through-hole.The middle part of the base of tabletting tool is equipped with the blind hole containing insulating ring, insulating ring is clamped between top cover and the hole bottom of blind hole, and top cover middle part is equipped with top cover hole for inserting pressing rod.The utility model mainly sets blind hole on tabletting tool, and battery sample is adhered in the ring hole bottom of insulating ring by pressing rod pressurization.When carrying out experiment, battery sample assembly is placed in the hole cavity of the through-hole of battery in-situ measuring device, and battery sample assembly is more convenient and has no risk of breakage.

This application discloses a dry-process negative electrode sheet and its preparation method, as well as a solid-state battery. The dry-process negative electrode sheet includes a modified sulfide solid electrolyte and a silicon-containing material. The modified sulfide solid electrolyte comprises a sulfide solid electrolyte and a coating layer located on at least a portion of the surface of the sulfide solid electrolyte. The coating layer comprises oxides and / or thiophosphates. This suppresses interfacial side reactions between the silicon-containing material and the sulfide solid electrolyte, reduces the consumption of the sulfide solid electrolyte during cycling, and improves the cycle life of the solid-state battery.

This invention relates to the field of semi-solid-state battery technology, and more particularly to a free radical in-situ polymerization semi-solid-state battery, comprising a protective housing, a top assembly on the top of the protective housing, and a protective cover on the top of the protective cover, with an installation pipe fixedly connected to the top of the protective cover. Through the coordinated use of the protective cover, a fan body, a temperature detector, a relay, a partition plate, and side guards, the fan body, located within the installation pipe, is activated by the relay when the temperature detector detects that the internal temperature exceeds a threshold, accelerating airflow and preventing heat accumulation inside the protective housing. The partition plate more effectively protects the internal batteries and also provides insulation to a certain extent, preventing heat interference between adjacent batteries. The side guards further expand the heat dissipation area, providing strong support for the stable operation of the battery.

The application provides a kind of unmanned area overhead transmission line network coverage method, along the line deployment multiple as intelligent spacer intelligent network node, node uses modular hot plug structure, equipped with super capacitor and solid-state battery hybrid energy storage system;Through LoRa communication to build distributed wireless mesh ad hoc network, combined with TDMA time division multiple access and AODV adaptive routing protocol;Utilize the power supply of at least two different principle of multi-source fusion self-powered module power supply;Node collects line monitoring data and carries out edge computing processing, and the processed data is transmitted through multi-hop relay transmission of ad hoc network, and then transmitted to the center master station through the main and standby dual-link redundant transmission architecture.The application can realize long-term stable self-power supply and reliable communication of unmanned transmission line, improve the real-time performance of monitoring data transmission and network invulnerability.

Composition for forming a positive electrode active material layer, solid-state battery, and method of manufacturing a solid-state battery, the solid-state battery including a positive electrode, a negative electrode current collector, and a solid electrolyte layer disposed between the positive electrode and the negative electrode current collector, wherein at least one of the positive electrode and the solid electrolyte layer includes a sulfide-based solid electrolyte, and at least one of a solvent or a decomposition product of the solvent, the solvent including a C1-C20 alkane compound containing one or more halogen atoms.

This invention relates to the field of solid-state battery technology, and particularly to a composite solid-state electrolyte material, its preparation method, and its application. The composite solid-state electrolyte material contains a crystalline phase substance with the general chemical formula: B%A a RE b X 1 c D g +C%A d M e X 2 f D h Where A represents charge carriers; RE represents rare earth elements; M represents metallic elements; X represents... 1 X 2 D is a halide anion; A is an anion doping element or group; a RE b X 1 c D g and A d M e X 2 f D h It is a crystalline phase substance; B% is A a RE b X 1 c D g The mass fraction of the composite solid electrolyte material; C% is A d M e X 2 f D h The mass fraction of the composite solid electrolyte material is defined as follows: 0 ≤ a ≤ 3, 0 < b ≤ 1, 0.5 < c ≤ 12, 0 < d ≤ 5, 0 < e ≤ 2, 1 < f ≤ 20, 0 ≤ g ≤ 4, 0 ≤ h ≤ 5; 85 < B + C < 98, 10% < B% ≤ 85%; 10% < C% ≤ 85%, 0.2 ≤ C / B ≤ 10. The composite solid electrolyte material of this invention includes crystalline and amorphous phase components, giving it high ionic conductivity. The use of moisture-resistant non-metallic halide components instead of traditional halides and oxyhalides in the raw materials also provides it with good air stability.

This invention provides a high thermal stability polymer solid electrolyte membrane, its preparation method, and a solid-state battery. The high thermal stability polymer solid electrolyte membrane uses highly crystalline aliphatic polyketide (POK) as a matrix. Through active regulation of its condensed-state structure, a novel ion transport network based on grain boundary conduction is constructed while maintaining a highly crystalline framework. The preparation method of this high thermal stability polymer solid electrolyte membrane introduces thermal annealing as an active grain boundary regulation step to precisely control the crystallization behavior and grain boundary network structure of the POK matrix, constructing a continuous and efficient grain boundary conduction network. This significantly improves ionic conductivity and high-temperature dimensional stability while maintaining the high crystalline framework of POK. Both the high thermal stability polymer solid electrolyte membrane and the solid-state battery incorporating it have promising prospects for industrial application.

This disclosure provides a method, apparatus, equipment, and product for testing crack propagation in all-solid-state batteries. By establishing a lithium-ion diffusion-induced strain model, a phase-field fracture model, and a fatigue damage model, it can not only finely simulate the actual material strain inside the cathode particles under the rigid constraint of the solid electrolyte, as well as the crack propagation and interface peeling process inside the particles under strain, during the cyclic charging process of all-solid-state batteries, but also finely simulate the contact interface between the cathode particles and the solid electrolyte, as well as the corresponding material strain and crack propagation under the solid electrolyte. This allows for a realistic reflection of various mechanical failure behaviors of all-solid-state batteries during cyclic charging and discharging, comprehensively characterizing the spontaneous propagation and interaction of cracks at the particle-electrolyte interface and between electrolytes, thus playing a comprehensive role in simulating crack propagation.

The application provides a low-strain nano silicon-carbon-based negative electrode material and a preparation method and a solid-state battery thereof, and relates to the technical field of lithium batteries. The application uses a bio-based material and a porous template material, carries out pretreatment on the materials, composites the materials at a certain ratio, calcines the precursor, carries out multiple washing and separation on the product, and prepares a composite nano silicon-carbon negative electrode material. The bio-based material provides rich conductive paths and also plays a good supporting role for the electrode material. The porous template material makes the composite material have a good pore structure, can provide more electrochemical reaction sites and lithium storage space, and also makes the electrode material have better stress buffering capacity. The volume expansion problem of the silicon-based material is significantly improved in cooperation of the two, and the nano silicon-carbon electrode material has high capacity and good rate performance and cycle performance.

An all-solid-state battery system is disclosed, the system comprising an all-solid-state battery comprising a plurality of cells arranged in a closed inner space of a pressurization chamber and a pressurizing fluid filled in the closed inner space of the pressurization chamber, a state detector configured to detect state information of the all-solid-state battery, a controller configured to output a control signal configured for controlling a pressure applied to the plurality of cells by the pressurizing fluid in the inner space of the pressurization chamber based on the state information of the all-solid-state battery detected by the state detector, and a pressurizing device configured to control the pressure applied to the plurality of cells by the pressurizing fluid according to the control signal outputted by the controller.

The utility model discloses a solid state battery high temperature sintering is with net belt relates to high temperature sintering is with net belt technical field, including two limit rings, install transmission net belt between two limit rings, and transmission net belt is by the same net belt structure of multisection composition, and the net belt is by the spiral muscle strip and connecting rod, and the opposite surface of two limit rings all is provided with limit ring groove, and the both ends of connecting rod are movably located in limit ring groove, the utility model discloses the cooperation of gyro wheel ring and limit ring, and it is convenient for transmission net belt to move in limit ring, and it is convenient for the rotation of transmission net belt's control, improved transmission net belt's stability, through the cooperation of connecting rod and spiral muscle strip, it is convenient for the quick assembly of net belt, and it is convenient for the replacement of damaged net belt, improved transmission net belt's reusability, and the device improves transmission net belt's transmission stability, and improves the reusability of the complete belt of testing.

The application provides a modified lithium-rich manganese-based positive electrode material, a preparation method thereof and a solid-state battery. The method comprises the following steps: mixing a manganese source, a nickel source and a cobalt source, adding deionized water and a dispersing agent to the mixture, adjusting the pH value to 8.5-11.5, performing a co-precipitation reaction at 40-80 DEG C for 12-36 h, and performing filtration, washing and drying to obtain a manganese-based precursor; ball-milling the manganese-based precursor with a lithium source, a main dopant and an auxiliary dopant to obtain a mixed powder; and heating the mixed powder to 800-1050 DEG C under inert gas protection and maintaining the temperature for 8-16 h. The structure stability of the modified lithium-rich manganese-based positive electrode material is improved, the electrochemical performance of the material is optimized, the specific capacity and the cycle stability are improved, the rate performance is improved, and the interface compatibility with a solid-state electrolyte is improved. The solid-state battery based on the material has excellent comprehensive performance, the preparation process is simplified, the cost is reduced, and the solid-state battery is suitable for large-scale industrial production.

The application provides a sulfide full-solid-state battery positive electrode material and a preparation method and application thereof, and the sulfide full-solid-state battery positive electrode material comprises a positive electrode active substance and a composite sulfide solid electrolyte; the composite sulfide solid electrolyte comprises a sulfide solid electrolyte matrix and a metal fluoride layer coated on the surface of the sulfide solid electrolyte matrix. The sulfide solid electrolyte is coated with a layer of metal fluoride, on the one hand, the stable metal fluoride effectively isolates the sulfide from direct contact with air, greatly improves the air stability of the sulfide, and alleviates the problem that the sulfide solid electrolyte is sensitive to air; on the other hand, the metal fluoride coating layer can avoid the direct contact between the sulfide solid electrolyte and the positive electrode material, and alleviate the instability between the positive electrode material and the electrolyte, which provides an effective idea for the industrialization of the full-solid-state battery.

The application relates to the technical field of batteries, in particular to a full solid-state battery and a preparation method thereof. The full solid-state battery comprises a positive electrode sheet, a negative electrode sheet, an electrolyte film, a first insulating adhesive edge and a second insulating adhesive edge. The electrolyte film is arranged on at least one side surface of the negative electrode sheet along the thickness direction, the first insulating adhesive edge and the second insulating adhesive edge are arranged on the two side edges of the electrolyte film along the width direction, and the positive electrode sheet is arranged in the gap between the first insulating adhesive edge and the second insulating adhesive edge. Compared with the prior art, the full solid-state battery provided by the application solves the interface problems that the full solid-state electrolyte cannot be bent and the active material at the R corner cannot be pressed by adopting the gap coating mode to arrange the insulating coating at the R corner position, solves the edge insulation and alignment problems by constructing the edge insulating adhesive on the upper and lower edges of the negative electrode and wrapping the upper and lower edges of the positive electrode, and the production efficiency is improved and the production cost is greatly reduced.

The present invention relates to an all-solid-state battery and a method for manufacturing same. More specifically, the all-solid-state battery of the present invention comprises: a positive electrode layer including a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector; a negative electrode layer; and a solid electrolyte layer provided between the positive electrode layer and the negative electrode layer. The content of the residual solvent in the positive electrode active material layer or the solid electrolyte layer is 1,000 ppm or less.

Provided is a negative electrode for an all-solid-state battery, an all-solid-state battery including the negative electrode, and a method for manufacturing a negative electrode for an all-solid-state battery, and more particularly to a negative electrode for an all-solid-state battery including a negative electrode current collector and a coating layer on the negative electrode current collector. The negative electrode current collector includes a first region and a second region surrounding the first region, and the second region includes a plurality of irregularities, an all-solid-state battery including the negative electrode, and a method for manufacturing a negative electrode for an all-solid-state battery.

This application provides a solid-state battery, a solid-state electrolyte material, and an electrical device. The solid-state battery includes a positive electrode, a first solid-state electrolyte membrane, a second solid-state electrolyte membrane, and a negative electrode, stacked sequentially. The negative electrode is a lithium metal negative electrode. The first solid-state electrolyte membrane is made of a sulfide solid electrolyte. The second solid-state electrolyte membrane is made of a material with the general formula Li. 5.2≤7‑2x‑na+y≤7.1 Ga x La b M1 y Zr 2‑a Q a O 12 The compound has the following properties: 0 < x ≤ 0.3, 0 ≤ y ≤ 0.5, 0 ≤ a ≤ 0.8, 0 < b ≤ 3. M1 includes one or more of Group II main metal elements, and Q includes one or more of Group I main metal elements, Group III transition metal elements, Group V main and transition metal elements, and Group VI main and transition metal elements. The oxidation state of Q is V1, n = V1 - 4, -2 ≤ n ≤ 1, 5.2 ≤ 7 - 2x - na + y ≤ 7.1. The solid-state battery can achieve both high battery capacity and good cycle performance and rate performance.

The application discloses a high lithium ion conductivity flame-retardant interface modifier and a preparation method thereof. The material is synthesized by one-pot one-step reaction of phosphorus oxychloride, diamine and alcohol ether compound, and is used in combination with lithium salt to form a flame-retardant interface modifier with high lithium ion conduction function. The molecular structure is rich in ether bonds, which can effectively coordinate with lithium ions, promote the efficient migration of lithium ions at the electrode interface, and significantly improve the cycle stability and rate performance of the solid-state battery. At the same time, the nitrogen and phosphorus elements introduced in the material endow it with excellent flame-retardant properties, which helps to improve the safety of the battery system. In addition, the modifier has good flowability and wettability, which can enhance the interface compatibility between the components in the solid-state battery. The preparation process of the application is simple, controllable, reproducible and low in cost, and is suitable for interface modification of solid-state lithium ion batteries, and has important prospects for promoting the development of high-safety, high-energy-density and low-cost solid-state batteries.

The utility model discloses a kind of solid-state battery membrane rolling equipment facilitating to take mould, including machine table, the machine table is provided with membrane rolling table, and is used to membrane rolling membrane rolling component, the membrane rolling table is provided with membrane rolling plate, the bottom of the membrane rolling plate is provided with heating plate, and the membrane rolling component includes membrane rolling roller, lifting unit driving membrane rolling roller to move up and down, and transverse module of driving membrane rolling roller horizontal movement, cooling passage is formed in the membrane rolling plate.

This invention belongs to the field of lithium-ion secondary battery technology, specifically relating to a method for transferring a solid electrolyte membrane, an electrode with a solid electrolyte membrane on its surface, and a solid-state battery. This invention obtains an adhesive with both moderate adhesion and high elasticity by compounding polyisobutylene with a styrene-ethylene-butene-styrene block copolymer (SEBS). This adhesive utilizes the synergistic effect of polyisobutylene providing interfacial adhesion and SEBS providing stress buffering, achieving temperature-sensitive transfer control with low-temperature pickup and high-temperature release within a specific temperature range. By adjusting the ratio of polyisobutylene to SEBS, a rigid-tough layer formulation for the positive electrode and a flexible layer formulation for the negative electrode are obtained, further constructing a bilayer solid electrolyte membrane. This invention achieves high-fidelity transfer of the solid electrolyte membrane to the electrode, significantly reducing interfacial defects and short-circuit risks, improving the cycle stability and thermal safety of the battery, and is suitable for the large-scale manufacturing of high-energy-density all-solid-state batteries.

This invention discloses a cyano-functionalized polyacrylic acid-based composite solid electrolyte material and its preparation method and application, belonging to the field of lithium battery technology. The method includes the following steps: (1) adding TMG, bromoacetonitrile, and bromopropylene to polyacrylic acid for catalytic esterification to obtain PAA-g-(CN / Vinyl); (2) mixing the PAA-g-(CN / Vinyl) with a photoinitiator and a lithium salt to obtain a polymer composite electrolyte precursor solution, followed by curing and crosslinking to obtain the cyano-functionalized polyacrylic acid-based composite solid electrolyte material. Starting from molecular design, this invention forms an integrated high-performance solid electrolyte system through a one-step controllable esterification reaction and subsequent composite curing, providing an innovative electrolyte solution for the development of safe, high-energy-density solid-state batteries.

This disclosure provides a solid-state battery cell, an electrolyte sheet, a method for preparing the same, a battery device, and an electrical device. The solid-state battery cell includes an electrolyte sheet and a negative electrode sheet. The electrolyte sheet includes: a solid electrolyte base layer; and an electron barrier layer disposed on the solid electrolyte base layer near the negative electrode sheet. The electron barrier layer includes Cs. X M y [Mo a (CN) b (NO) c The solid-state battery cell contains nH₂O, where M includes one or more of Fe, Co, Ni, Cu, Zn, Mg, Ca, Sr, and Ba; 0.6≤x≤1.5, 0.75≤y≤1.2, 0.8≤a≤1.2, 4.5≤b≤5.5, 0.8≤c≤1.3, and 0<n≤8. This reduces the phenomenon of dendrites penetrating the electrolyte sheet, lowers the probability of short circuits, and improves the reliability and cycle capacity retention of the solid-state battery cell.

This invention discloses a photolithographically patternable lithium-ion electrolyte, its preparation method, and its applications. The electrolyte is a photolithographically curable lithium-ion electrolyte composition, comprising, by mass percentage, LiTFSI, polyethylene glycol methyl ether methacrylate, bisphenol A ethyl oxide dimethacrylate, fluoroethylene carbonate, succinic acid, 2-hydroxy-2-methyl-1-phenyl-1-propanone (HMPP), 3-(isobutyryloxy)propyltrimethoxysilane, and 2-methyl-2-acrylate-2-hydroxyethyl. This invention also discloses a stepwise preparation method for this composition and its applications in micro-energy storage and ion-electronic devices such as micro solid-state batteries, ion-controlled transistors, and neuromorphic devices. This electrolyte can be patterned at the micro-nano scale using standard photolithography processes, exhibiting excellent lithium-ion conductivity, electrochemical stability, mechanical flexibility, and optical transparency. It also shows good interface compatibility with gold electrodes / silicon wafers, requiring no additional etching or transfer processes. This solves the technical problems of existing solid-state electrolytes being difficult to fabricate at the micro-nano scale and incompatible with microelectronic processes, and has broad application prospects in the fields of micro-nano fabrication and micro-devices.