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1. (WO2019027901) CURRENT INTERRUPT DEVICES USING SHAPE MEMORY MATERIALS
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Pub. No.:
WO/2019/027901
International Application No.:
PCT/US2018/044378
Publication Date:
07.02.2019
International Filing Date:
30.07.2018
IPC:
H01H 37/52
(2006.01) ,
H01H 37/02
(2006.01) ,
H01H 37/32
(2006.01) ,
H01M 2/34
(2006.01)
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37
Thermally-actuated switches
02
Details
32
Thermally-sensitive members
52
actuated due to deflection of bimetallic element
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37
Thermally-actuated switches
02
Details
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37
Thermally-actuated switches
02
Details
32
Thermally-sensitive members
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
20
Current-conducting connections for cells
34
with provision for preventing undesired use or discharge
Applicants:
24M TECHNOLOGIES, INC.
[US/US]; 130 Brookline Street Cambridge, Massachusetts 02139, US
Inventors:
TYLER, Matthew R.
; US
LAWRENCE, Ryan M.
; US
Agent:
WESTON, Scott B.
; US
FARMER, Jesse D.
; US
Priority Data:
62/539,156
31.07.2017
US
Title
(EN)
CURRENT INTERRUPT DEVICES USING SHAPE MEMORY MATERIALS
(FR)
DISPOSITIFS D'INTERRUPTION DE COURANT UTILISANT DES MATÉRIAUX À MÉMOIRE DE FORME
Abstract:
(EN)
Embodiments described herein relate to current interrupt devices (CIDs) for electrochemical cells that use a thermal trigger (e.g., shape memory and/or bi-metallic materials) to open an electrical circuit just prior to a thermal runaway or during short-circuit event to prevent catastrophic failure of the electrochemical cell. Embodiments include CIDs comprising a housing, a bus bar coupled to the housing, and a thermal trigger operably coupled to the bus bar. In some embodiments, the bus bar can include an engineered fracture site. In some embodiments, the thermal trigger is dimensioned and configured to deform at a predetermined temperature to break the bus bar at the engineered fracture site. In some embodiments, a portion of the bus bar travels about a hinge, opening the electrical circuit and preventing overcharging, thermal runaway, and/or other catastrophic failure events.
(FR)
Des modes de réalisation de la présente invention concernent des dispositifs d'interruption de courant (CIDs) pour des cellules électrochimiques qui utilisent un déclencheur thermique (par exemple, une mémoire de forme et/ou des matériaux bi-métalliques) pour ouvrir un circuit électrique juste avant un emballement thermique ou pendant un événement de court-circuit afin d'empêcher une défaillance catastrophique de la cellule électrochimique. Des modes de réalisation comprennent des CIDs comprenant un boîtier, une barre omnibus couplée au boîtier, et un déclencheur thermique couplé de manière fonctionnelle à la barre omnibus. Dans certains modes de réalisation, la barre omnibus peut comprendre un site de fracture modifié. Dans certains modes de réalisation, le déclencheur thermique est dimensionné et configuré pour se déformer à une température prédéterminée pour rompre la barre omnibus au niveau du site de fracture modifié. Dans certains modes de réalisation, une partie de la barre omnibus se déplace autour d'une charnière, ouvrant le circuit électrique et empêchant une surcharge, un emballement thermique et/ou d'autres événements de défaillance catastrophiques.
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language:
English (
EN
)
Filing Language:
English (
EN
)