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System and method for electrolyte filling and electrical connection of lithium ion batteries

A lithium-ion battery pack and electrolyte technology, which is used in battery pack parts, secondary batteries, battery assembly machines, etc.

Pending Publication Date: 2021-07-30
CADENZA INNOVATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once so connected, the electrical connection between the bus bar and / or plate and the positive / negative terminals can present challenges, for example, based on available space and the need to electrically isolate one or both connections from each other and / or from external capacitors need

Method used

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  • System and method for electrolyte filling and electrical connection of lithium ion batteries
  • System and method for electrolyte filling and electrical connection of lithium ion batteries
  • System and method for electrolyte filling and electrical connection of lithium ion batteries

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Embodiment Construction

[0036] The present disclosure provides a system / method for delivering electrolyte to a jelly roll assembly to maximize the amount of electrolyte retained within the jelly roll assembly. Additionally, the disclosed systems / methods ensure that electrolytes are delivered quickly, efficiently, and without waste. The present disclosure also provides an advantageous multi-cell lithium-ion battery pack having an advantageous bus bar assembly therein. Multi-cell lithium-ion batteries have been previously disclosed in US Patent Nos. 9,685,644 and 9,871,236. The foregoing patents are hereby incorporated by reference.

[0037] A multi-cell lithium-ion battery pack is described having a sealed housing within which a support member is disposed. The support member includes a plurality of cavities and a plurality of jelly-roll assemblies disposed within corresponding ones of the plurality of cavities. There may be a plurality of cavity liners, each cavity liner being located between a res...

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PUM

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Abstract

The present disclosure provides for advantageous electrolyte filling systems / methods utilizing predetermined pressure / flow cycles. The disclosed electrolyte filling system enables filling of at least one jelly roll assembly under vacuum. The disclosed electrolyte filling system is capable of simultaneously filling at least two multi-core lithium ion batteries. The disclosed multi-core lithium ion batteries include a plurality of jelly roll assemblies positioned within cavities, which are further positioned within a sealed enclosure. The disclosed jelly roll assemblies are electrically connected to at least one bus bar. The disclosed bus bars include at least one flexible connective structure to electrically connect to a sealed enclosure.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority to U.S. Provisional Patent Application entitled "System and Method for ElectrolyteFilling and Electrical Connection of Lithium Ion Batteries," filed October 5, 2018, with assigned serial number 62 / 742,022. The entire contents of the aforementioned US Provisional Patent Application are hereby incorporated by reference. technical field [0003] The present disclosure relates to lithium-ion batteries, and more particularly, to multi-cell lithium-ion batteries with improved safety and reduced manufacturing costs. Background technique [0004] In some cases, conventional Li-ion batteries are individually filled before being inserted into Li-ion containers. Li-ion cells can be wiped clean if electrolyte spills during filling. Therefore, concerns about residual electrolyte on Li-ion batteries can be reduced. However, in the case of lithium-ion batteries filled with electrolyt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/609H01M50/503B65B31/02H01M50/618H01M50/673
CPCH01M10/0409H01M50/609H01M50/618H01M10/0587H01M50/502H01M50/204H01M50/673Y02E60/10Y02P70/50H01M10/0525
Inventor 托尔德·佩尔·延斯·奥内鲁德迈克尔·苏巴杰伊·杰·施
Owner CADENZA INNOVATION INC
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