18418371. CURRENT COLLECTOR, ELECTRODE PLATE AND PREPARATION METHOD THEREOF, ELECTRODE ASSEMBLY, AND SECONDARY BATTERY simplified abstract (CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED)

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CURRENT COLLECTOR, ELECTRODE PLATE AND PREPARATION METHOD THEREOF, ELECTRODE ASSEMBLY, AND SECONDARY BATTERY

Organization Name

CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor(s)

Zhi Liu of Ningde (CN)

Dongyang Shi of Ningde (CN)

Ruijing Lv of Ningde (CN)

Yaqian Deng of Ningde (CN)

Yuzhen Wang of Ningde (CN)

Haizu Jin of Ningde (CN)

Baiqing Li of Ningde (CN)

CURRENT COLLECTOR, ELECTRODE PLATE AND PREPARATION METHOD THEREOF, ELECTRODE ASSEMBLY, AND SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18418371 titled 'CURRENT COLLECTOR, ELECTRODE PLATE AND PREPARATION METHOD THEREOF, ELECTRODE ASSEMBLY, AND SECONDARY BATTERY

Simplified Explanation

The present application relates to a current collector, an electrode plate and a preparation method thereof, an electrode assembly, and a secondary battery. Through holes running through a current collecting body are provided in at least one corner region, so that the electrode assembly formed by winding electrode plates provided with the current collectors may feature the through holes in at least one layer of electrode plate in a bent portion. In this case, during cyclic charging, lithium ions on a convex side and a concave side of the electrode plate may communicate through the through holes, thereby ensuring that intercalated lithium concentrations on two sides of the electrode plate are balanced, reducing the risk of lithium precipitation between the negative electrode plate and the positive electrode plate in the bent portion, and prolonging the service life of the secondary battery.

  • Through holes in current collector for balanced lithium ion communication
  • Reduces risk of lithium precipitation between electrode plates
  • Prolongs service life of secondary battery

Potential Applications

The technology could be applied in the development of high-performance secondary batteries for various industries such as electronics, automotive, and energy storage.

Problems Solved

1. Imbalance in intercalated lithium concentrations on electrode plates 2. Risk of lithium precipitation between negative and positive electrode plates

Benefits

1. Enhanced battery performance and longevity 2. Improved safety and reliability in battery operation

Potential Commercial Applications

Optimizing battery performance in electric vehicles Enhancing energy storage systems for renewable energy sources

Possible Prior Art

One possible prior art could be the use of similar through-hole designs in electrode assemblies for lithium-ion batteries, but with a focus on different aspects such as conductivity or structural integrity.

Unanswered Questions

How does the technology impact the overall efficiency of the battery system?

The article does not delve into the specific efficiency gains or losses associated with the implementation of this technology in secondary batteries.

Are there any limitations to the size or scale at which this technology can be effectively implemented?

The article does not address whether there are any restrictions on the size or scale of batteries where this technology can be applied, which could be crucial for certain applications.


Original Abstract Submitted

The present application relates to a current collector, an electrode plate and a preparation method thereof, an electrode assembly, and a secondary battery. Through holes running through a current collecting body are provided in at least one corner region, so that the electrode assembly formed by winding electrode plates provided with the current collectors may feature the through holes in at least one layer of electrode plate in a bent portion. In this case, during cyclic charging, lithium ions on a convex side and a concave side of the electrode plate may communicate through the through holes, thereby ensuring that intercalated lithium concentrations on two sides of the electrode plate are balanced, reducing the risk of lithium precipitation between the negative electrode plate and the positive electrode plate in the bent portion, and prolonging the service life of the secondary battery.