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Battery system with improved lifetime property and method for operating battery system

A battery system and battery housing technology, applied to large-size batteries/battery packs, small-size batteries/battery packs, secondary batteries, etc., can solve high-power vehicles with low power, reduced capacity, economic disadvantages, etc. question

Active Publication Date: 2018-08-31
LG ENERGY SOLUTION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In this way, the performance degradation of lithium secondary battery cells during long-term use may have a direct impact on equipment using lithium secondary batteries, for example, when the capacity of multiple lithium secondary battery cells decreases due to repeated charging and discharging, Vehicles that require high power may travel shorter distances and take less power
These problems can be solved by replacing the lithium secondary battery cells or discarding the vehicle, which may be economically disadvantageous

Method used

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  • Battery system with improved lifetime property and method for operating battery system
  • Battery system with improved lifetime property and method for operating battery system
  • Battery system with improved lifetime property and method for operating battery system

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Embodiment Construction

[0096] Hereinafter, the present invention will be described according to embodiments of the present invention with reference to the accompanying drawings, and the description is provided for better understanding of the present invention, and thus, the scope of the present invention is not limited thereto.

[0097] figure 1 is a schematic diagram of a battery system according to an example embodiment of the present invention, figure 2 is a schematic diagram of a secondary battery cell in a first state and a second state, image 3 is a schematic diagram of the secondary battery cell in the third state.

[0098] Referring to these drawings, a battery system 100 has the following structure: four cells connected in parallel, each of which includes two secondary battery cells 10 connected in series, a positive terminal 110 and a module negative terminal 120 from the battery system 100 leads out on one side.

[0099] In the present invention, the maximum capacity of the secondary...

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Abstract

The present invention relates to a battery system capable of mitigating the performance deterioration of a secondary battery cell and extending a period of use by additionally injecting a second electrolyte at a point in time when the capacity of the secondary battery cell has decreased, and a method for operating a battery system.

Description

technical field [0001] This application claims priority and benefit from Korean Patent Application No. 10-2016-0073666 filed with the Korean Intellectual Property Office on June 14, 2016, the entire contents of which are hereby incorporated by reference. [0002] The present invention relates to a battery system with improved cycle life characteristics and a method for operating the battery system. Background technique [0003] In the 21st century, with the brilliant development of information technology (IT, Information Technology), various portable information communication devices are widely used, and the "ubiquitous society" that can provide high-quality information services anytime and anywhere is constantly developing. . [0004] This development of the ubiquitous society is strongly motivated and supported by lithium secondary battery cells. Specifically, rechargeable and dischargeable lithium secondary battery cells are widely used not only as energy sources for wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/42H01M10/056H01M2/02H01M2/36H01M50/105H01M50/119H01M50/121H01M50/124H01M50/627H01M50/636
CPCH01M10/0525H01M10/056H01M10/4242Y02E60/10H01M50/124H01M50/636H01M50/105H01M50/121H01M50/627H01M50/119H01M10/4214H01M10/4235H01M2010/4271H01M10/42
Inventor 金大洙李汉荣金东规金锡九
Owner LG ENERGY SOLUTION LTD
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