Pouch type secondary battery and the fabrication method thereof
A secondary battery and electrode technology, applied in secondary battery manufacturing, secondary battery, electrode manufacturing, etc., can solve the problems of electrode assembly limitation, poor flexibility, large-capacity battery obstacles, etc., and achieve the effect of flexible design
Active Publication Date: 2014-11-05
SAMSUNG SDI CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, as the depth of the receiving space of the pouch increases, it may become rather difficult to achieve flexibility in designing the external shape of the pouch, resulting in limitations in accommodating electrode assemblies with relatively large thicknesses.
Thus, the realization of high-capacity batteries is ultimately hindered
In addition, the manufacturing method of the pouch type secondary battery, including the forming process, suffers from the disadvantage of poor flexibility in designing the external shape of the pouch type secondary battery
Method used
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Embodiment Construction
[0013] Example embodiments will now be described more fully hereinafter with reference to the accompanying drawings; however, they may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0014] figure 1 is a flowchart of a method of manufacturing a pouch-type secondary battery according to an embodiment of the present invention. Figure 2A to Figure 2F A method of manufacturing a pouch-type secondary battery according to an embodiment of the present invention is shown.
[0015] refer to figure 1 , The manufacturing method of a pouch-type secondary battery according to an embodiment of the present invention may include installing an electrode assembly (S10), primary sealing (S20), injecting an electrolyte solution (S30), and secondary sealing (S40). ...
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Abstract
A fabrication process for a secondary battery, wherein the process comprises: locating an electrode assembly between a first pouch sheet and a second pouch sheet; performing a first joining step, in which respective portions of the first pouch sheet and the second pouch sheet are joined together, so as to form a seal that at least partially surrounds the electrode assembly; supplying the electrode assembly with an electrolyte; and performing a second joining step, in which further respective portions of the first pouch sheet and the second pouch sheet are joined together in a region situated between the seal and the electrode assembly.
Description
technical field [0001] Embodiments of the present invention relate to a pouch type secondary battery and a method of manufacturing the same. Background technique [0002] With the development of electronic devices such as cellular phones, notebook computers, camcorders, electric motorcycles, or electric vehicles, research has currently been directed to secondary batteries that are generally rechargeable. [0003] Secondary batteries can be made into various shapes, for example, pouch-shaped batteries, cylindrical batteries, or prismatic batteries. In particular, pouch-type secondary batteries typically include an electrode assembly housed in a multilayer pouch consisting of a metal foil and at least one polymer layer covering the metal foil. More specifically, the electrode assembly is located in a receiving space of a bag formed through a forming process using a punch or a die. However, as the depth of the receiving space of the pouch increases, it may become rather diffi...
Claims
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IPC IPC(8): H01M10/04H01M4/04H01M4/76H01M50/105H01M50/119H01M50/121H01M50/129H01M50/178H01M50/55H01M50/627H01M50/636
CPCH01M10/0413H01M10/0525H01M2/06H01M2/204H01M2/0413H01M2/0267H01M2/0217H01M2/365H01M2/0207H01M2/021H01M2/361H01M2/0265Y02E60/122Y02P70/50Y02E60/10H01M50/636H01M50/129H01M50/105H01M50/627H01M50/119H01M50/178H01M50/55H01M50/121H01M50/183H01M50/124H01M50/103H01M50/171
Inventor 尹壮浩
Owner SAMSUNG SDI CO LTD