More safety in the field of e‑mobility

In addi­tion to capac­i­ty, safe­ty is the key cri­te­ri­on for the mar­ket suc­cess of ener­gy stor­age solu­tions in the future field of e‑drives. With eVent rup­ture discs, Bor­mann & Neu­pert by BS&B now offers pres­sure relief in the small­est diam­e­ters from three mil­lime­ters and with low response pres­sures from 0.1 bar espe­cial­ly for use in lithi­um-ion bat­ter­ies and bat­tery packs as well as fuel cells. The OEM com­po­nents ensure direc­tion­al and thus safe pres­sure relief at crit­i­cal over­pres­sures. Pas­sen­ger cars, com­mer­cial vehi­cles or mobile machin­ery as well as their users thus remain pro­tect­ed against haz­ards from uncon­trolled leak­ing chem­i­cals or flames.

From Novem­ber 30 to Decem­ber 2, 2021, the experts for pres­sure relief and indus­tri­al safe­ty tech­nol­o­gy will present the rup­ture discs at Europe’s lead­ing trade fair for bat­tery tech­nol­o­gy: In Hall 4 at Stand 495at Messe Stuttgart, man­u­fac­tur­ers of bat­ter­ies and e‑drives, auto­mo­tive sup­pli­ers and man­u­fac­tur­ers as well as pro­duc­ers of mobile machin­ery will find detailed infor­ma­tion on the rup­ture discs. In addi­tion, trade fair vis­i­tors will gain insight into the entire port­fo­lio of indus­tri­al pres­sure relief sys­tems for series pro­duc­tion as well as spe­cial plant engineering.

The cause of exces­sive inter­nal pres­sure in bat­tery cells is usu­al­ly over­heat­ing due to over­load, short cir­cuit or over­charg­ing. As a pre­de­ter­mined break­ing point, eVent rup­ture discs from Bor­mann & Neu­pert by BS&B yield with high pre­ci­sion at the pre­de­fined response pres­sure. In doing so, the rup­ture discs imme­di­ate­ly open the largest pos­si­ble, stream­lined out­let cross-sec­tion; this offers a con­sid­er­able safe­ty advan­tage, espe­cial­ly in the event of a rapid pres­sure increase. The hous­ing of the bat­tery cell, which is her­met­i­cal­ly sealed dur­ing reg­u­lar oper­a­tion, remains intact. The com­pa­ny designs and man­u­fac­tures the rup­ture discs in a cus­tomer-spe­cif­ic design for every instal­la­tion sit­u­a­tion. They are sup­plied “ready to fit” as inte­grat­ed, ready-to-install com­po­nents. The com­pact size of the low-pres­sure and medi­um-pres­sure rup­ture discs allows easy posi­tion­ing accord­ing to safe­ty-opti­mized standards.

All vari­ants of the rup­ture discs have long proven their trig­ger­ing accu­ra­cy and per­ma­nent tech­ni­cal free­dom from leak­age in the chem­i­cal indus­try. As com­po­nents for bat­tery and fuel cell tech­nol­o­gy, they guar­an­tee per­ma­nent free­dom from main­te­nance and vibra­tion resis­tance over the entire oper­at­ing time. Unin­ten­tion­al response due to mate­r­i­al fatigue is vir­tu­al­ly elim­i­nat­ed. This makes them supe­ri­or to oth­er solu­tions for small instal­la­tion spaces; they are also lighter and release the max­i­mum flow cross-sec­tion more quick­ly. The rup­ture discs can eas­i­ly with­stand all pres­sure fluc­tu­a­tions caused by load and tem­per­a­ture changes per­ma­nent­ly up to 90 per­cent of their response pres­sure. To pro­tect the hous­ings, man­u­fac­tur­ers can of course com­bine the reliefs with bal­anc­ing diaphragms.

For the first time, the Group is now also offer­ing a new­ly devel­oped low-pres­sure rup­ture disc capa­ble of vent­ing. It com­bines pres­sure equal­iza­tion and pres­sure relief. In this way, the require­ments of an air-per­me­able and a burstable com­po­nent can be met with just one component.

In addi­tion to the OEM sec­tor for the auto­mo­tive indus­try, the rup­ture discs are main­ly offered for use in avi­a­tion and in high-safe­ty envi­ron­ments such as safe­ty sys­tems for pro­tec­tion against fire or in cool­ing sys­tems. Numer­ous vari­ants in design, dimen­sion and mate­r­i­al always allow for an appli­ca­tion-spe­cif­ic design. Cer­ti­fi­ca­tions in accor­dance with ISO 9001, AS9100 and IATF 16949 under­line the demands the com­pa­ny makes on its own tech­nol­o­gy, high-grade pro­duc­tion and qual­i­ty. And with which it sets stan­dards in pres­sure relief for the bat­tery industry.