Challenges
We speÂcialÂize in high-preÂciÂsion simÂuÂlaÂtion softÂware for lithiÂum-ion-batÂterÂies. For every lithiÂum-ion cell, we creÂate physÂiÂcal modÂels and demonÂstrate globÂal validÂiÂty. We call our modÂels BateÂmo Cells. They help in solvÂing cenÂtral chalÂlenges of batÂtery sysÂtem develÂopÂment and answerÂing typÂiÂcal design quesÂtions such as:
- Which cell techÂnolÂoÂgy is most suitÂable for a speÂcifÂic application?
- What does an optiÂmal pack design look like?
- Which operÂaÂtional stratÂeÂgy extends the lifeÂtime of the battery?
- How can innoÂvÂaÂtive fast chargÂing methÂods be developed?
- How can safeÂty be guarÂanÂteed in comÂplex sysÂtems, under all circumstances?
In indusÂtriÂal research and develÂopÂment, there is a well-estabÂlished way to cope with these chalÂlenges: design deciÂsions and develÂopÂment processÂes are based on simÂuÂlaÂtions. This requires a comÂputÂer-based repÂreÂsenÂtaÂtion of the batÂtery cell known as a modÂel or digÂiÂtal twin. Today, two approachÂes are usuÂalÂly used for that purpose.
Equivalent Circuit Models
inaccurate and no insights
EquivÂaÂlent cirÂcuit modÂels (ECM) mimÂic the terÂmiÂnal behavÂior of the cell using simÂple eleÂments like resisÂtors, capacÂiÂtors or othÂer impedÂance eleÂments. The modÂel paraÂmeÂters are usuÂalÂly mulÂti-dimenÂsionÂal lookup-tables obtained from varÂiÂous meaÂsureÂments. Because the funÂdaÂmenÂtal modÂel strucÂture does not match the cell physics and since nonÂlinÂearÂiÂties are not propÂerÂly takÂen into account, ECMs are inacÂcuÂrate and do not allow an insight into the cell.
Using finite eleÂment method (FEM) tools, the microstrucÂture of the elecÂtrodes is reconÂstructÂed and the sysÂtem of parÂtial difÂferÂenÂtial equaÂtions is solved spaÂtialÂly. This approach is error-prone; paraÂmeÂterÂiÂzaÂtion takes sevÂerÂal months and the modÂel validÂiÂty must be ensured by you. MoreÂover, simÂuÂlaÂtions will usuÂalÂly take sevÂerÂal hours. This makes the FEM approach too comÂplex and too slow for indusÂtriÂal development.
Battery Models based on the Finite Element Method
complex and slow
Solution
BateÂmo Cells comÂbine the best of both approachÂes: the easy hanÂdling and speed of the ECM modÂels with the physÂiÂcalÂiÂty and accuÂraÂcy of the FEM modÂels. They are based on the funÂdaÂmenÂtal idea of preÂciseÂly describÂing and virÂtuÂalÂly reproÂducÂing all relÂeÂvant processÂes inside lithiÂum-ion-batÂterÂies. This is quite comÂpliÂcatÂed: physÂiÂcal, chemÂiÂcal and therÂmoÂdyÂnamÂic processÂes are couÂpled in comÂplex ways, dependÂing on operÂatÂing conÂdiÂtions and age. EveryÂthing hapÂpens simulÂtaÂneÂousÂly and runs on difÂferÂent length and time scales: from elecÂtrode parÂtiÂcles just a few micromÂeÂters in size, up to processÂes in the cenÂtimeÂter range of cell and pack size. Some processÂes take just milÂlisecÂonds, othÂers need months. You will receive our BateÂmo Cells designed for the develÂopÂment enviÂronÂment you are familÂiar with. Through optiÂmized paraÂmeÂterÂiÂzaÂtion methÂods, we easÂiÂly and quickÂly creÂate BateÂmo Cells for your cells and demonÂstrate their validÂiÂty. With a flexÂiÂble interÂface and simÂuÂlaÂtion times in a matÂter of secÂonds, the BateÂmo Cells will seamÂlessÂly inteÂgrate into your indusÂtriÂal research and develÂopÂment processes.
Advantages
You can use our BateÂmo Cells as digÂiÂtal twins and thus save time-conÂsumÂing and lengthy meaÂsureÂments. Your batÂtery sysÂtem develÂopÂment becomes modÂel-based, makÂing it faster, safer, more flexÂiÂble, and leadÂing to betÂter prodÂucts. This is how we conÂtribute to your success.
fast
charging
Fast batÂtery chargÂing is used in many appliÂcaÂtions, where the batÂterÂies must not be damÂaged. You can develÂop minÂiÂmal-aging, fast-chargÂing methÂods for your batÂtery packs using our BateÂmo Cells. Thus, chargÂing time can be cut by a third withÂout addiÂtionÂal aging of the cells.
enhance
technology
With BateÂmo Cells, the innoÂvaÂtion potenÂtial of new ideas can be easÂiÂly evalÂuÂatÂed and comÂplex funcÂtions can be develÂoped much more quickÂly. This is how you can enhance your techÂnoÂlogÂiÂcal leadership.
increase
safety
You can monÂiÂtor your batÂterÂies durÂing operÂaÂtion. You can develÂop safeÂty feaÂtures with BateÂmo Cells, detect critÂiÂcal conÂdiÂtions earÂly, and design effiÂcient strateÂgies to ensure safe operÂaÂtion under all conditions.
cope with
complexity
BatÂtery packs are often used in a variÂety of prodÂucts with difÂferÂent chargÂers. Using BateÂmo Cell simÂuÂlaÂtions, you can ensure overÂall compatibility.
increase
market share
If you are introÂducÂing new techÂnoloÂgies to the marÂket, BateÂmo Cells will help you bring high-qualÂiÂty, innoÂvÂaÂtive ideas to the marÂket very quickÂly. Key prodÂuct feaÂtures can be improved and difÂferÂenÂtiÂatÂed from comÂpetiÂtors, leadÂing to increased marÂket share.
speed up
testing
BateÂmo Cell simÂuÂlaÂtions are sigÂnifÂiÂcantÂly faster than real-time labÂoÂraÂtoÂry tests. You can perÂform comÂpreÂhenÂsive, simÂuÂlaÂtion-based test sceÂnarÂios with sinÂgle cells, batÂtery packs, or total sysÂtems in a fracÂtion of the time.
minimize
risk
With BateÂmo Cells, sinÂgle funcÂtions or sub-sysÂtems can be thorÂoughÂly testÂed in the earÂly stages of the develÂopÂment process. You can thus detect design errors earÂly on and sigÂnifÂiÂcantÂly reduce the failÂure rate of your design and proÂducÂtion validation.
reduce
cost
BateÂmo Cells reduce the cost of batÂtery sysÂtem develÂopÂment in many ways. For instance, you can reduce expensÂes on proÂtoÂtypÂing, avoid perÂformÂing extenÂsive lab meaÂsureÂments, and decrease your develÂopÂment time.