A battery pack and a method of manufacturing a battery pack
A technology of battery packs and batteries, which is applied to battery pack components, batteries, secondary batteries, etc., and can solve problems such as catastrophic short circuits, battery explosions, and battery fires
Pending Publication Date: 2021-08-17
XEROTECH LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
For example, lithium plating and / or crystal formation within the battery can pierce the dielectric film inside the battery, leading to a potentially catastrophic short circuit and battery explosion
This condition can spread throughout the assembly causing all cells to catch fire
Method used
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Embodiment Construction
[0232] figure 1 Thermal management system 18 of battery pack 21 is shown. The term "battery" is used herein to describe one or more individual batteries, such as a set of batteries arranged in an array. The term "battery" may be used to refer to any kind of battery including, but not limited to, lithium ion or nickel metal hydride batteries. The battery pack 21 includes one or more batteries 30, a flexible conduit 50 / 230 located near the surface of at least one of the one or more batteries 30, such that the flexible conduit 50 / 230 and the one or more Heat can be exchanged between at least one of the cells 30, and a potting material 231 adapted to act as a support for at least a portion of the conduit 50 / 230. Any number of individual cells may be used to produce the desired voltage and capacity of battery pack 21 .
[0233] The thermal management system 18 is used to manage thermal energy within the battery pack 21 in order to maintain the individual cells at a suitable oper...
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Abstract
A battery pack comprises one or more cells 30, a flexible duct 50 positioned proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 50 and at least one of the one or more cells 30 and a potting means which at least partially surrounds at least a part of the duct 50. A method of manufacturing a battery pack comprises providing one or more cells 30, positioning a flexible duct 50 proximally to the surface of at least one of the one or more cells 30 such that heat can be exchanged between the duct 0 and the at least one of the one or more cells 30, inserting fluid into the duct 50 and at least partially surrounding at least a part of the duct 50 with a potting means. The potting means may be expandable foam.
Description
technical field [0001] The invention relates to a battery pack and a manufacturing method thereof, in particular to a vehicle battery pack with a thermal management system. Background technique [0002] Key requirements for next-generation battery packs, especially lithium-ion battery packs for vehicles, are improved gravimetric and volumetric energy density, improved cycle life and fast charging. With the development of battery electrochemistry and chemical engineering, the gravimetric and volumetric energy densities have been greatly improved. However, improvements in the mechanical design of battery packs have also had a significant impact on the overall weight and size of the pack. Battery pack mechanical design affects cycle life and fast charge capability primarily through thermal management systems. Thermal management systems can be used to minimize temperature variations within the battery pack to prevent differences in battery aging that ultimately lead to reduced...
Claims
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IPC IPC(8): H01M10/643H01M10/6557
CPCH01M10/6557H01M10/643F28D2021/0029F28F1/08F28D1/0478F28F2255/02F28F21/062Y02E60/10H01M10/613H01M10/615H01M10/617H01M10/625H01M10/627H01M10/6567H01M10/6568H01M10/658H01M50/213H01M10/652H01M50/289H01M2220/10H01M2220/20H01M10/0525H01M10/653
Inventor B·弗兰纳里
Owner XEROTECH LTD