Method for manufacturing lithium secondary battery
A technology of lithium secondary battery and manufacturing method, applied in secondary battery, electrolyte storage battery manufacturing, electrode manufacturing, etc., can solve the problems of increased distance, low adhesion of electrode active material layer, unbalanced electrode active material loading, etc. , to achieve the effect of simplifying the process, overcoming structural limitations, and reducing the amount of
Active Publication Date: 2019-06-28
LG ENERGY SOLUTION LTD
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- Application Information
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Problems solved by technology
However, some phenomena may arise due to the processing issues associated with it, including imbalances in the loading of electrode active materials and defects in processed electrodes, such as low adhesion of electrode active material layers
In particular, there is a problem that the output characteristics of the battery rapidly decrease due to an increase in the distance between the current collector and the electrode active material layer
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[0034] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before the description, it should be understood that the terms used in the specification and appended claims should not be construed as limited to the ordinary and dictionary meanings, but should be based on the principle of allowing the inventor to define the terms appropriately for the best explanation, Interpretation is based on meanings and concepts corresponding to the technical idea of the present disclosure.
[0035] Accordingly, the descriptions presented herein are preferred embodiments for illustrative purposes only, and are not intended to limit the scope of the present disclosure, so it should be understood that other changes can be made thereto without departing from the scope of the present disclosure. equivalents and modifications.
[0036] Hereinafter, a method of manufacturing a lithium secondary battery according to t...
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Abstract
The present invention relates to a method for manufacturing a lithium secondary battery, the method comprising the steps of: (S1) preparing a battery frame which includes a three-dimensional porous cathode current collector provided at one side of the inside of a battery case and a three-dimensional porous anode current collector provided at the other side of the inside of the battery case; (S2) injecting a cathode active material into pores formed inside the cathode current collector and injecting an anode active material into pores formed inside the anode current collector; and (S3) performing rolling by applying pressure to the battery frame.
Description
technical field [0001] The present disclosure relates to a method of manufacturing a lithium secondary battery. More particularly, the present disclosure relates to a method of manufacturing a lithium secondary battery capable of manufacturing a battery by introducing an electrode active material into pores of a three-dimensional porous current collector provided in a battery case and then pressing the battery case , so no separate electrode fabrication process is required. [0002] This application claims priority from Korean Patent Application No. 10-2017-0044955 filed in Korea on April 6, 2017, the disclosure of which is incorporated herein by reference. Background technique [0003] Lithium secondary batteries having high applicability to various products and high electrical performance such as high energy density have been widely used in portable devices, and electric vehicles (EV) or hybrid vehicles (HV) driven by an electric drive source Wait. [0004] Such a lithi...
Claims
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IPC IPC(8): H01M4/139H01M4/04H01M4/76H01M4/74H01M4/66H01M10/052H01M10/0562H01M50/105H01M50/107H01M50/119H01M50/124
CPCH01M4/74H01M10/0562H01M10/0525H01M4/661H01M4/762H01M4/80H01M2300/0065H01M10/049Y02P70/50Y02E60/10H01M50/105H01M50/124H01M50/107H01M50/119H01M4/139H01M4/0435H01M4/742H01M4/0416H01M4/0471H01M10/052H01M2300/0068H01M10/058H01M10/0481H01M4/76H01M4/66H01M4/04Y02T10/70
Inventor 柳玟圭姜盛中金珠炼严仁晟
Owner LG ENERGY SOLUTION LTD