Sf Motors, Inc.

Chongqing Jinkang New Energy Vehicle Co., Ltd.

Chien-Fan Chen

Ying Liu

Yifan Tang

Derek Nathan Wong

Scott Quinlan Freeman Monismith

Jeremy Andrew Elsberry

A battery cell of a battery pack to power an electric vehicle can include a housing to at least partially enclose an electrode assembly is provided. The battery cell can include a vent plate coupled with the housing via a glass weld at a lateral end of the battery cell. The vent plate can include a scoring pattern to cause the vent plate to rupture in response to a threshold pressure. A first end of a polymer tab can be electrically coupled with the vent plate at an area within a scored region defined by the scoring pattern. A second end of the polymer tab can be electrically coupled with an electrode assembly. The polymer tab can melt in response to either a threshold temperature or a threshold current within the battery cell.

Battery cell for electric vehicle battery pack

Provided herein are a battery cell of a battery pack to power electric vehicles. The battery cell can include a housing. The housing can define an inner region. An electrolyte can be disposed in the inner region defined by the housing. The battery cell can include a lid. A gasket can couple the lid with the first end of the housing to seal the battery cell. The gasket can include a first gasket surface and a second gasket surface. The first end of the housing can have a crimped edge disposed about the first gasket surface to couple the gasket with the first end of the housing and position the second gasket surface adjacent to the electrolyte. The crimped edge can have a first crimped surface having a predetermined pattern for wire bonding and a second crimped surface disposed adjacent to the first gasket surface.

Electric vehicle battery cell having a patterned surface

Provided herein are battery cells for battery packs in electric vehicles. The battery cell can include a housing having a first end, a second end, and an inner surface. The housing can define an inner region and an electrolyte can be disposed in the inner region of the housing. A gasket can couple a lid with the first end of the housing to seal the battery cell. The inner surface can include a recess and a groove. The groove can form a path from the recess to an egress point on the first end of the housing. A pressure sensor can be disposed in the recess. The pressure sensor can couple with a pressure sensor wire disposed in the groove and the pressure sensor wire can extend from the recess and past the egress point on the first end of the housing to provide sensed pressure information.

Battery cells for battery packs in electric vehicles

Provided herein are battery cell modules of battery packs to power electric vehicles. The battery cell modules can include a plurality of battery cells, each of which can include a housing having a first end and a second end, the housing defining an inner region. An electrode structure can be disposed in the inner region defined by the housing, the electrode structure including a cathode tab that extends from the first end of the housing, and an anode tab that extends from the first end of the housing. A lid can be coupled with the first end of the housing, the lid including a cathode tab opening and an anode tab opening. A base includes a plurality cathode sockets receiving respective cathode tabs of the plurality of battery cells and a plurality of anode sockets receiving respective anode tabs of the plurality of battery cells.

Integrated battery cell modules with plug-in battery cells for electric vehicles

Provided herein are battery packs for electric vehicles. A battery pack can include a housing having cavities. The battery pack can include electrode structures having a first tab terminal and a second tab terminal. A cover can be disposed over the housing. The cover can include first junction connectors extending between a first surface of the cover and a second surface of the cover. The first tab terminal of each electrode structure can be welded to respective first junction connectors.

Integrated battery modules in electric vehicles

Provided herein are battery cells for battery packs in electric vehicles. The battery cell includes a housing defining an inner region, an electrolyte disposed within the inner region, and a gasket that couples a lid with the housing to seal the battery cell. The gasket can include an inner portion having an ingress point and an egress point. The inner portion can have disposed therein a thermocouple wire that extends through the inner portion, past the ingress point and past the egress point. The thermocouple wire can include a first lead, a second lead, and a third lead. The first, second, and third leads can be disposed within a common jacket between the ingress point and the egress point. A thermocouple sensor can be disposed in the inner region and be coupled with the first, second, and third leads of the thermocouple wire to provide sensed temperature information.

Growing community of inventors

Santa Clara, CA, United States of America

Chien-Fan Chen