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1. WO2023283762 - CYLINDRICAL BATTERY CELL, BATTERY AND METHOD FOR FORMING CYLINDRICAL BATTERY CELL

Publication Number WO/2023/283762
Publication Date 19.01.2023
International Application No. PCT/CN2021/105754
International Filing Date 12.07.2021
IPC
H01M 10/0525 2010.1
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
H01M 50/559 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
50Current conducting connections for cells or batteries
543Terminals
552characterised by their shape
559Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/591 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
50Current conducting connections for cells or batteries
572Means for preventing undesired use or discharge
584for preventing incorrect connections inside or outside the batteries
59characterised by the protection means
591Covers
H01M 50/528 2021.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
50Current conducting connections for cells or batteries
528Fixed electrical connections, i.e. not intended for disconnection
Applicants
  • HEFEI GOTION HIGH-TECH POWER ENERGY CO., LTD. [CN]/[CN]
Inventors
  • DARBANDI, Azad
  • SCHMIEG, Tobias
  • CHENG, Qian
  • LI, Chen
Agents
  • BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CYLINDRICAL BATTERY CELL, BATTERY AND METHOD FOR FORMING CYLINDRICAL BATTERY CELL
(FR) ÉLÉMENT DE BATTERIE CYLINDRIQUE, BATTERIE ET PROCÉDÉ DE FORMATION D'ÉLÉMENT DE BATTERIE CYLINDRIQUE
Abstract
(EN) A cylindrical battery cell, a battery and a method for forming cylindrical battery cell are provided. In the cylindrical battery cell, a cap component at least includes a terminal, a fixing element and a cap plate, the terminal including a step-shape structure, wherein the step-shape structure includes a substrate portion and a rivet portion, the substrate portion being blocked on a fist side of the cap plate, the rivet portion being extended from the substrate portion, the fixing element being connected to an outer side of the rivet portion on a second side of the cap plate. Therefore, an energy gravimetric and volumetric density of the battery cell are increased, and a cell inner resistance and an energy loss are decreased. Furthermore, a manufacturing process is simplified and costs consequently are reduced.
(FR) L'invention concerne un élément de batterie cylindrique, une batterie et un procédé de formation d'un élément de batterie cylindrique. Dans l'élément de batterie cylindrique, un composant de capuchon comprenant au moins une borne, un élément de fixation et une plaque de capuchon, la borne comprenant une structure en forme d'escalier, la structure en forme d'escalier comprenant une partie de substrat et une partie rivet, la partie de substrat étant bloquée sur un premier côté de la plaque de capuchon, la partie de rivet étant étendue à partir de la partie de substrat, l'élément de fixation étant relié à un côté extérieur de la partie de rivet sur un second côté de la plaque de capuchon. Par conséquent, une densité d'énergie et une densité volumétrique de l'élément de batterie sont augmentées, et une résistance interne d'élément et une perte d'énergie sont réduites. En outre, un procédé de fabrication est simplifié et les coûts en conséquence sont réduits.
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