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1. WO2017106349 - LOW PROFILE PRESSURE DISCONNECT DEVICE FOR LITHIUM ION BATTERIES

Publication Number WO/2017/106349
Publication Date 22.06.2017
International Application No. PCT/US2016/066663
International Filing Date 14.12.2016
IPC
B60L 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
3Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
CPC
B60L 2240/545
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
2240Control parameters of input or output; Target parameters
40Drive Train control parameters
54related to batteries
545Temperature
B60L 3/0046
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
3Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
0046relating to electric energy storage systems, e.g. batteries or capacitors
B60L 50/64
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
50Electric propulsion with power supplied within the vehicle
50using propulsion power supplied by batteries or fuel cells
60using power supplied by batteries
64Constructional details of batteries specially adapted for electric vehicles
B60L 58/15
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
58Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
10for monitoring or controlling batteries
12responding to state of charge [SoC]
15Preventing overcharging
B60L 58/26
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
58Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
10for monitoring or controlling batteries
24for controlling the temperature of batteries
26by cooling
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
Applicants
  • CADENZA INNOVATION, INC. [US]/[US]
Inventors
  • ONNERUD, Tord, Per Jens
  • SHI, Jay, Jie
Agents
  • NABULSI, Basam, E.
  • BUMGARNER, Aaron, P.
  • CHERKASOV, Vadlm
  • HASAN, Naveed, S.
  • MACDAVITT, Sean
Priority Data
62/266,81314.12.2015US
62/395,05015.09.2016US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LOW PROFILE PRESSURE DISCONNECT DEVICE FOR LITHIUM ION BATTERIES
(FR) DISPOSITIF DE DÉCONNEXION DE PRESSION À PROFIL BAS POUR BATTERIES AU LITHIUM-ION
Abstract
(EN)
Casings for lithium ion batteries are provided that include a container or assembly that defines a base, side walls and a top or lid, and a vent structure associated with the container or assembly. A flame arrestor may be positioned in proximity to the vent structure. The lithium ion battery may also include a pressure disconnect device associated with the casing. The pressure disconnect device may include a deflectable dome-based activation mechanism, and the deflectable dome-based activation mechanism may be configured and dimensioned to prevent burn through, e.g., by increasing the mass of the dome-based activation mechanism, adding material (e.g., foil) to the dome-based activation mechanism, and combinations thereof. Burn through may also be avoided, at least in part, based on the speed at which the dome-based activation mechanism responds at a target trigger pressure.
(FR)
L'invention concerne des boîtiers pour batteries au lithium-ion qui comportent un récipient ou un ensemble formant une base, des parois latérales et une partie supérieure ou un couvercle, et une structure de ventilation associée au récipient ou à l'ensemble. Un pare-flammes peut être placé à proximité de la structure de ventilation. La batterie au lithium-ion peut également comprendre un dispositif de déconnexion de pression associé au boîtier. Le dispositif de déconnexion de pression peut comprendre un mécanisme d'activation à base de dôme déformable, et le mécanisme d'activation à base de dôme déformable peut être configuré et dimensionné pour empêcher le feu, par exemple, en augmentant la masse du mécanisme d'activation à base de dôme, en ajoutant un matériau (par exemple, une feuille) au mécanisme d'activation à base de dôme, et des combinaisons de ceux-ci. Le feu peut également être évité, au moins en partie, sur la base de la vitesse à laquelle le mécanisme d'activation à base de dôme répond à une pression de déclenchement cible.
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