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A kind of high-capacity secondary battery and its application

A secondary battery and high-capacity technology, which is applied in the field of electrochemical energy storage technology and application, can solve the problems of reducing the energy density of batteries, numerous quality control steps, and increasing safety risks, so as to improve energy density and service life, save Development cycle and cost, the effect of overcoming easy leakage

Active Publication Date: 2022-01-25
TIANMU LAKE INST OF ADVANCED ENERGY STORAGE TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is very complicated, there are many quality control steps, low yield, and difficult customization, etc., and a large number of inactive foil materials, insulation and shell materials are introduced, which reduces the energy density of the battery cell and increases safety risks.
Moreover, the differences in battery capacity, performance and application scenarios also lead to a wide variety of batteries, complex designs, and increased costs for R&D and production.

Method used

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  • A kind of high-capacity secondary battery and its application
  • A kind of high-capacity secondary battery and its application
  • A kind of high-capacity secondary battery and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] figure 1 An exploded perspective view of the high-capacity secondary battery provided in Example 1 of the present invention. Such asfigure 1 As shown, the high-capacity secondary battery includes a casing 1 and an electrode assembly unit 2 ; the electrode assembly unit 2 is accommodated in the casing 1 .

[0041] figure 2 A perspective view of a high-capacity secondary battery provided in Example 1 of the present invention. Such as figure 2 As shown, the housing 1 includes two parts, an upper housing 11 and a lower housing 12; the lower housing 12 includes two accommodating areas, which are respectively a first accommodating area (not shown in the figure) and a second accommodating area (not shown in the figure).

[0042] combine figure 1 with figure 2 As shown, a sealing hole 13 is provided at the symmetrical position of the upper casing 11 and the lower casing 12, and the sealing bolt 14 is penetrated in the sealing hole 13, and is fixed by a nut 15 to carry ...

Embodiment 2

[0058] The high-capacity secondary battery provided in this embodiment is a modular design suitable for expansion of the cells of the high-capacity secondary battery in the above-mentioned embodiment 1, and obtains a structure of a battery assembly unit suitable for expansion, so that it can be controlled by The number of battery combination units can meet different capacity requirements and provide customizable secondary batteries.

[0059] In this embodiment 2, we provide a high-capacity secondary battery including a set of battery assembly units.

[0060] image 3 An exploded perspective view of a high-capacity secondary battery provided in Example 2 of the present invention. Such as image 3 As shown, the high-capacity secondary battery includes a casing 1, an electrode assembly unit 2, an independent second electrode 3 and two second electrode current collectors 4; an electrode assembly unit 2, an independent second electrode 3 and two The second electrode current coll...

Embodiment 3

[0071] The high-capacity secondary battery provided in this embodiment is a customized secondary battery obtained by selecting a corresponding number of battery assembly units of the high-capacity secondary battery in the above-mentioned embodiment 2 according to different requirements.

[0072] Figure 5 A three-dimensional cross-sectional view of a high-capacity secondary battery provided in Example 3 of the present invention. Such as Figure 5 As shown, the high-capacity secondary battery includes a casing 1, a plurality of electrode assembly units 2, an independent second electrode 3 and two second electrode current collectors 4; a plurality of electrode assembly units 2, an independent second electrode 3 and The two second electrode current collectors 4 are housed together in the casing 1 .

[0073] Image 6 A perspective view of a high-capacity secondary battery provided in Example 3 of the present invention. Such as Image 6 As shown, the housing 1 includes two par...

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Abstract

The embodiment of the present invention relates to a large-capacity secondary battery and its application. The large-capacity secondary battery includes a casing and an electrode assembly unit; an electrode assembly unit is accommodated in the casing; the casing is an insulating casing, including an upper case The body and the lower casing are two parts; the lower casing includes a first accommodating area and a second accommodating area; the electrode combination unit includes a first electrode, a second electrode, a solid electrolyte, a first electrode collector, and a second electrode collector The first electrode is carried on the first electrode collector and placed together in the first accommodation area; the second electrode is carried on the second electrode collector and placed together in the second accommodation area; the solid electrolyte is arranged in the Between the first electrode and the second electrode, and the solid electrolyte separates the first accommodating area and the second accommodating area into two mutually isolated areas, the large-capacity secondary battery of the present invention is used for distributed energy storage devices, Smart grid cabinets and energy storage devices for power grids or energy storage devices for electric vehicles.

Description

technical field [0001] The invention relates to the field of electrochemical energy storage technology and application, in particular to a large-capacity secondary battery and its application. Background technique [0002] Energy is the main driving force driving the development of human society. The 21st century has entered the information age, and the demand for energy technology is very urgent. Secondary batteries have become one of the most widely used and mature energy storage technologies due to their advantages such as high energy density, high power density, long cycle life, environmental protection, and no memory effect. Different application scenarios have different requirements for power output and performance requirements. For example, the size of the battery, the size of the battery capacity, and the customization of the safety performance required by the different environments in which the battery equipment is used, etc. [0003] For example, lithium-ion batt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M10/0525H01M10/0565H01M10/0585H01M50/202H01M50/24H01M50/264H01M50/289H01M50/505
CPCH01M10/0413H01M10/0585H01M10/0525H01M10/0565H01M2220/10H01M2220/20H01M50/10Y02E60/10Y02P70/50
Inventor 吴凡王朔李泓
Owner TIANMU LAKE INST OF ADVANCED ENERGY STORAGE TECH CO LTD
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