EP 4292158 A1 20231220 - METHOD FOR PRODUCING A LITHIUM ION BATTERY AND LITHIUM ION BATTERY
Title (en)
METHOD FOR PRODUCING A LITHIUM ION BATTERY AND LITHIUM ION BATTERY
Title (de)
VERFAHREN ZUM HERSTELLEN EINER LITHIUMIONENBATTERIE SOWIE LITHIUMIONENBATTERIE
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE BATTERIE LITHIUM-ION ET BATTERIE LITHIUM-ION
Publication
Application
Priority
- DE 102021103172 A 20210211
- EP 2022051554 W 20220125
Abstract (en)
[origin: WO2022171425A1] The invention relates to a method for producing a lithium ion battery (10), comprising the following steps: a housing (11) is provided and an electrode arrangement (12) is inserted into the housing (11). The electrode arrangement (12) is formed from alternating layers of a cathode (16) and an anode (14), wherein the at least one anode (14) contains an anode active material comprising a silicon- and/or titanium-based component. At least one flexible volume compensation element (28) is situated between the electrode arrangement (12) and the housing (11), wherein the volume compensation element (28) comprises a casing (30) and an inert gas (32) accommodated within the casing (30) or an electrolyte accommodated within the casing (30), and wherein the volume compensation element (28) counteracts expansion of the electrode arrangement (12). The housing (11) is sealed to form the lithium ion battery (10). The lithium ion battery (10) is then charged, wherein the casing (30) of the volume compensation element (28) is opened to release the inert gas (32) or the electrolyte when a target expansion of the electrode arrangement (12) is reached. The invention also relates to a lithium ion battery (10).
IPC 8 full level
H01M 10/42 (2006.01)
CPC (source: EP US)
H01M 10/0525 (2013.01 - US); H01M 10/0585 (2013.01 - US); H01M 10/4235 (2013.01 - EP US); H01M 10/44 (2013.01 - US); H01M 2200/20 (2013.01 - US); Y02E 60/10 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)
Citation (search report)
See references of WO 2022171425A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021103172 A1 20220811; CN 116830352 A 20230929; EP 4292158 A1 20231220; US 2024128522 A1 20240418; WO 2022171425 A1 20220818
DOCDB simple family (application)
DE 102021103172 A 20210211; CN 202280014204 A 20220125; EP 2022051554 W 20220125; EP 22713281 A 20220125; US 202218276088 A 20220125