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1. (WO2018036668) SEPARATOR/CURRENT COLLECTOR UNIT FOR GALVANIC CELLS
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Pub. No.: WO/2018/036668 International Application No.: PCT/EP2017/059875
Publication Date: 01.03.2018 International Filing Date: 26.04.2017
IPC:
H01M 2/18 (2006.01) ,H01M 2/26 (2006.01) ,H01M 4/66 (2006.01) ,H01M 4/74 (2006.01) ,H01M 10/04 (2006.01) ,H01M 10/0525 (2010.01) ,H01M 10/058 (2010.01) ,H01M 10/0583 (2010.01)
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
14
Separators; Membranes; Diaphragms; Spacing elements
18
characterised by the shape
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
22
Fixed connections, i.e. not intended for disconnection
26
Electrode connections
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
64
Carriers or collectors
66
Selection of materials
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
64
Carriers or collectors
70
characterised by shape or form
72
Grids
74
Meshes or woven material; Expanded metal
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
04
Construction or manufacture in general
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
052
Li-accumulators
0525
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
058
Construction or manufacture
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
058
Construction or manufacture
0583
of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
Applicants:
BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT [DE/DE]; Petuelring 130 80809 München, DE
Inventors:
BAUER, Christoph; DE
LUX, Simon; US
OGIHARA, Hideki; DE
Priority Data:
10 2016 215 667.522.08.2016DE
Title (EN) SEPARATOR/CURRENT COLLECTOR UNIT FOR GALVANIC CELLS
(FR) UNITÉ SÉPARATEUR-COLLECTEUR DE COURANT POUR ÉLÉMENTS GALVANIQUES
(DE) SEPARATOR-STROMABLEITER-EINHEIT FÜR GALVANISCHE ZELLEN
Abstract:
(EN) The invention relates to a separator/current collector unit for a galvanic cell, in particular for a lithium-ion cell. The separator/current collector unit has a separator and a number N ≧ 1 of electrically conductive current collectors, each of which is arranged on the surface of the separator and is connected to same in order to form a unit, in the process forming a respective boundary surface together with the surface of the separator. Each of the current collectors has a porous material for receiving an electrolyte such that the separator/current collector unit conducts ions through the at least one boundary surface when the porous material has received electrolytes. Furthermore, the invention relates to a galvanic cell comprising such a separator/current collector unit and to a battery made of multiple such cells. The aim of the invention is to improve the achievable energy density of galvanic cells and batteries and the producibility thereof, in particular with respect to the complexity and/or production times of the galvanic cells and batteries.
(FR) L'invention concerne une unité séparateur-collecteur de courant pour un élément galvanique, en particulier pour un élément lithium-ion. L'unité séparateur-dérivateur de courant présente un séparateur ainsi qu'un nombre N ≧ 1 de collecteurs de courant électroconducteurs qui sont disposés chacun sur la surface du séparateur, surface à laquelle ils sont reliés en une unité et forment une interface respective avec la surface du séparateur. Chaque collecteur de courant présente à cet effet un matériau poreux pour absorber un électrolyte, de manière que l'unité séparateur-collecteur de courant exerce une action de conduction des ions au moins à travers l'interface, lorsque le matériau poreux a absorbé l'électrolyte. L'invention concerne également un élément galvanique doté d'une telle unité séparateur-collecteur de courant et une batterie composée de plusieurs éléments de ce type. L'invention vise à améliorer la densité énergétique pouvant être atteinte d'éléments galvaniques et de batteries ainsi que leur aptitude à être produits, en particulier en termes de complexité et/ou de temps de fabrication.
(DE) Die Erfindung betrifft eine Separator-Stromableiter-Einheit für eine galvanische Zel- le, insbesondere für eine Lithium-Ionen-Zelle. Die Separator-Stromableiter-Einheit weist einen Separator sowie eine Anzahl N ≧ 1 elektrisch leitender Stromableiter auf, die jeweils auf der Oberfläche des Separators angeordnet und mit dieser zu einer Einheit verbunden sind und dabei mit der Oberfläche des Separators eine je- weilige Grenzfläche ausbilden. Dabei weist jeder der Stromableiter ein poröses Ma- terial zur Aufnahme eines Elektrolyten auf, so dass die Separator-Stromableiter- Einheit durch die wenigstens eine Grenzfläche hindurch ionenleitend wirkt, wenn das poröse Material den Elektrolyten aufgenommen hat. Des Weiteren betrifft die Erfindung eine galvanische Zelle mit einer solchen Separator-Stromableiter-Einheit und eine aus mehreren solcher Zellen aufgebaute Batterie. Der Erfindung liegt die Aufgabe zugrunde, die erreichbare Energiedichte von galvanischen Zellen und Bat- terien, sowie deren Fertigbarkeit insbesondere im Hinblick auf deren Komplexität und/oder Fertigungszeiten zu verbessern.
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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, 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: German (DE)
Filing Language: German (DE)