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ENERGY STORE DEVICE

[Category : - ELECTRONICS- MECHANICAL ENGINEERING- RENEWABLE ENERGY]
[Viewed 1067 times]

The present invention relates to an energy storage device having a plurality of cooling channels (130) arranged spaced apart substantially parallel in a plane and adapted to be flowed through by a cooling fluid, comprising at least one collecting box (110, 120) located in the Plane is disposed with and substantially perpendicular to the plurality of cooling channels (130) and connected to the same to receive or deliver the cooling fluid from the same, and with a stack of a plurality of electrochemical energy storage units (310) arranged so in that in each case at least one energy storage unit (310) of the plurality of electrochemical energy storage units (310) is arranged between two adjacent cooling channels (130) of the plurality of cooling channels (130).

Description and scenario of usage:
Conventional low-cost cooling concepts and components (flat tubes, collectors) from the automotive cooling and air-conditioning sector in mass production are used as a basic concept for low-cost battery cooling.

Solved problem with the invention:
For the cooling of Li-Ion cells, specially designed and manufactured cooling elements are used, which results in high unit costs for small quantities with a big variety of variants. Using conventional, cost-effective cooling elements (flat tube, collector) and concepts (flat tube collector design) from classic automotive cooling and refrigeration technology, the development and manufacturing costs for battery cooling can be drastically reduced and improved cooling achieved at the same time
.
Advantages und USP with the invention:
With the use of classical cooling elements and the use of modified large series components and processes, development costs and manufacturing costs can be significantly reduced. Additionally, an improved modularization and scalability of the cooling concept as well as an improved assembly of flat tube / cooling plate and collector can be achieved.
Due to improved cell cooling through thermal connection of the cell on both sides and thus an optimized stack density of Li-ion cells, material can also be reduced, which results in a weight reduction of the entire battery housing, with a positive effect in terms of increased range.

Financial information

The patent family comprises the following alive granted patents: EP2497145B1, CN102771004B, JP5810422B2 – thereby a big market size is covered.
All patent family members were granted without any restrictions. There were no oppositions against any of the family members. All fees are paid. The patent family was cited 19 times in total. 2029-11-06 is the anticipated expiry date for the patent family.
The invention addresses cost effects for small quantities by using conventional, cost-effective cooling elements (flat tube, collector) and concepts (flat tube collector design) from classic automotive cooling and refrigeration technology, the development and manufacturing costs for battery cooling can be drastically reduced and improved cooling achieved at the same time.
The invention perfectly meets the current trend of electric vehicle power supply and increasing battery efficiency at low cost. The patent family described was created as part of Behr GmbH & Co KG ‘s R&D work. Behr is a big German car supplier. The patents listed here originate from the field of Li-Ion cells, their low-cost, weight-optimized, modular design, cooling, connection/assembly. The area of thermal management and energy storage was one of the core projects there. This invention addresses key functions such as electrical contacting, thermal contacting and cooling at module level via uniformly defined module interfaces results in significant advantages in the very fast and simple exchangeability.
The acquisition of Behr by Mahle (another big car supplier) also resulted in the abandonment of Behr's original strategy of investing in battery cell production (pouch cells, see arrester patents) and in battery production as a whole (see patent family 1). The patent families described here fall within this period of Behr's original strategy.
Some of the patents from this area were transferred to one of the inventors involved (Prof. Dr. Herrmann) and are now for sale or licensing. For all the inventions described, prototypes or pre-series products were available that demonstrated the technical and economic feasibility.
The sale of the patent portfolio takes place against a bid – a detailed value calculation of each patent family member is available and may be provided on request.
There is no minimum bid even though the patent family was valued to a big sized 5 digit USD value.

Patent publications:

EP 2497145

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intracom (Germany)

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