Centrifugal Battery Liquid Injection With Piston-Driven Wetting

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Solution Overview

Problem

Current battery liquid injection methods using high-pressure cavities are costly, risky, and inefficient, with complex structures, long wetting times, and difficulty in controlling liquid amounts, leading to uneven battery performance and potential bulging or reduced capacity.

Innovation Solution

A centrifugal battery liquid injection mechanism with a piston-driven liquid injection device and a driving device that uses a mechanical valve and air pump to control liquid injection, providing a closed system for precise wetting and movement of the battery, ensuring an apparent wetting effect, high safety, and low cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a high-pressure cavity is used for battery liquid injection, then the liquid injection can be achieved, but the manufacturing cost increases and safety risk increases

Engineering Contradiction:
Improveliquid injection effectivenessVSAvoidsafety risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the battery from the high-pressure cavity environment and instead introduces the electrolyte into a pressure chamber for pressurized injection. This removes the battery from the harmful high-pressure environment while achieving the same liquid injection effect through a safer alternative setup.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a pressure chamber as an intermediary device between the electrolyte source and the battery. The pressure chamber serves as a mediator that enables controlled electrolyte injection without requiring the battery itself to be placed in a high-pressure cavity, thus reducing safety risks.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a high-pressure cavity is used for battery liquid injection, then the liquid injection can be achieved, but the manufacturing cost increases

Engineering Contradiction:
Improveliquid injection effectivenessVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent extracts the battery from the high-pressure cavity environment and instead introduces the electrolyte into a pressure chamber for pressurized injection. This removes the battery from the harmful high-pressure environment while achieving the same liquid injection effect through a safer alternative setup.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs a simpler pressure chamber design that can be easily manufactured and potentially disposed of or replaced at low cost, rather than using expensive, complex high-pressure cavity systems. The focus is on achieving the injection function with more economical equipment.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If a high-pressure cavity is used for battery liquid injection, then the liquid injection can be achieved, but the wetting time increases and wetting effect is unapparent

Engineering Contradiction:
Improveliquid injection effectivenessVSAvoidwetting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent employs periodic reciprocating motion of the battery through the liquid electrolyte, alternating between immersion and extraction phases. This periodic action enhances the wetting effect by continuously renewing the contact between the battery surfaces and the electrolyte, preventing saturation and improving penetration efficiency over time.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent transforms the static liquid injection process into a dynamic one by implementing reciprocating motion of the battery. The battery moves back and forth through the electrolyte, creating dynamic wetting conditions that improve penetration and absorption effectiveness compared to static immersion methods.

Inventive Principle:
Principle #15Dynamics

4Reliability

If a high-pressure cavity is used for battery liquid injection, then the liquid injection can be achieved, but the structure becomes complex

Engineering Contradiction:
Improveliquid injection effectivenessVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the battery from the high-pressure cavity environment and instead introduces the electrolyte into a pressure chamber for pressurized injection. This removes the battery from the harmful high-pressure environment while achieving the same liquid injection effect through a safer alternative setup.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a pressure chamber as an intermediary device between the electrolyte source and the battery. The pressure chamber serves as a mediator that enables controlled electrolyte injection without requiring the battery itself to be placed in a high-pressure cavity, thus reducing safety risks.

Inventive Principle:
Principle #24Intermediary (Mediator)

5Reliability

If a high-pressure cavity is used for battery liquid injection, then the liquid injection can be achieved, but the liquid injection amount control becomes difficult

Engineering Contradiction:
Improveliquid injection effectivenessVSAvoidliquid injection amount control
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent implements a feedback control system that monitors the liquid injection process in real-time and adjusts the injection parameters accordingly. Sensors detect the wetting state and liquid absorption of the battery, providing feedback to the control system to precisely regulate the injection amount and prevent over- or under-injection.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent transforms the static liquid injection process into a dynamic one by implementing reciprocating motion of the battery. The battery moves back and forth through the electrolyte, creating dynamic wetting conditions that improve penetration and absorption effectiveness compared to static immersion methods.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The centrifugal mechanism achieves efficient and safe liquid injection with apparent wetting, high safety performance, and low operational costs, improving battery performance by ensuring precise liquid distribution and reducing the risk of bulging or capacity reduction.

Implementation Method 1

controlling the piston mechanism to move towards one end of the liquid outlet head, and injecting the wetting liquid in the liquid injection device into the to-be-wetted device

Methodology Applied
Scientific EffectAir pressure: Pressure Increase

Implementation Method 2

A centrifugal battery liquid injection mechanism and a liquid injection method thereof

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS11894581B2Centrifugal battery liquid injection mechanism and liquid injection method thereof
Publication Date: 2024.02.06 SHENZHEN GREENSUN TECH CO LTD
  • US11894581B2 patent drawing
  • US11894581B2 patent drawing
  • US11894581B2 patent drawing

AI summary

Provided are a centrifugal battery liquid injection mechanism and a liquid injection method thereof. The centrifugal battery liquid injection mechanism comprises a liquid injection device and a driving device, the liquid injection device is provided with a piston mechanism and a liquid outlet head capable of being opened and closed, and one end of the liquid injection device close to the liquid outlet head is further provided with a liquid injection port capable of being opened and closed; and the liquid injection port is used for injecting a wetting liquid into the liquid injection device. The liquid injection device is connected with a to-be-wetted device through the liquid outlet head, so as to inject the wetting liquid into the to-be-wetted device. The driving device is connected with the to-be-wetted device for driving the to-be-wetted device to move.