Sulfide impregnated solid state battery
A technology of sulfide and solid electrolytes, applied in battery electrodes, secondary batteries, solid electrolytes, etc., can solve the problems of increased manufacturing costs, limited options, and increased engineering costs
Active Publication Date: 2021-02-19
GM GLOBAL TECH OPERATIONS LLC
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Problems solved by technology
In this regard, in each step of the current S-SSB fabrication (e.g., wet coating process), the ambient air is usually strictly controlled, which may increase the manufacturing cost
In addition, the choice of solvents, binders and their combinations is relatively limited, resulting in increased engineering costs
Method used
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[0038] The following description is merely exemplary in nature and is not intended to limit the disclosure, application or uses.
[0039] refer to Figure 1-2 , provides a method 10 for fabricating a sulfide-impregnated solid-state battery. As shown, method 10 includes a step 12 of providing cells for a rechargeable battery. In this example, a battery cell having a plurality of battery cells connected in parallel is provided. Such as figure 2 As shown, the plurality of battery cells are arranged in a parallel stacked design. However, it should be understood that the battery cells may be arranged in any other suitable manner. For example, battery cells can be connected in series, a bipolar stack design.
[0040] Such as figure 2 As shown, the battery core 14 is composed of basic battery cells, and these basic battery cells are stacked in parallel. Each battery cell has a positive electrode 16 having a positive electrode layer 18 and a mesh positive current collector 20 ....
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Abstract
A sulfide impregnated solid state battery is provided. The battery includes a battery cell composed of basic battery units. Each battery unit comprises a positive electrode, the positive electrode comprises a positive electrode layer and a net-shaped positive electrode current collector, the positive electrode current collector comprises a conductive material, and the positive electrode is furthercoated with an oxide-based solid electrolyte. Each battery unit also includes a negative electrode including a negative electrode layer and a mesh negative electrode current collector including a conductive material, the negative electrode further coated with an oxide-based solid electrolyte. The positive and negative electrodes are stacked together to form the battery units. And the two coated oxide-based solid electrolyte layers are arranged between the positive electrode and the negative electrode and serve as double diaphragms. Such battery units may be repeated or connected in a parallelor bipolar stacked manner to form the battery cell, thereby obtaining the desired battery voltage, power and energy. Further, the battery cell includes a sulfide-based solid electrolyte dispersed ina pore structure of the battery cell.
Description
technical field [0001] The present disclosure relates to rechargeable solid-state batteries, and more particularly to sulfide-impregnated solid-state battery designs. Background technique [0002] With the rapid spread of information-related devices, communication devices, etc., the importance of developing batteries that can be used as power sources for these devices is increasing. Furthermore, in the automotive industry, the development of high-power-output, high-energy-density batteries that can be used in electric or hybrid vehicles is underway. Among the various types of batteries that exist today, Li-ion batteries are effective in filling electric vehicles, mobile batteries due to their good power density (fast charging / discharging performance), high energy density, long cycle life, and ability to be formed into various shapes and sizes. The available space for phones and other electronic devices is therefore one of the focal points of attention. However, those comme...
Claims
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IPC IPC(8): H01M10/058H01M10/0562H01M50/431H01M4/74
CPCH01M10/058H01M10/0562H01M4/74H01M2300/0071H01M2300/0068H01M4/62H01M10/0525H01M4/661H01M10/056H01M10/0585H01M2300/0045H01M4/13Y02E60/10Y02P70/50
Inventor 李喆阙小超刘海晶陆涌M·W·维尔布鲁根吴美远
Owner GM GLOBAL TECH OPERATIONS LLC