GB/T 42471-2023Nanotechnologies—Bending test of flexible energy storage nanodevices (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

Introduction

The flexibility and portability of electronic equipment brings a lot of convenience, but traditional energy storage devices are relatively rigid and cannot be integrated with modern flexible electronic equipment.

Therefore, flexible nano energy storage devices based on nanomaterials or nanotechnology have emerged. Use of nanomaterial substrates (such as carbon nano tubes, graphene, carbon fibers, low-dimensional nanostructured materials and corresponding composite materials, etc.), combined with nanostructured active materials, flexible nanoscale energy storage The device can improve the flexibility of the device on the basis of obtaining the advantages of energy storage, and realize a fully flexible integrated electronic system.

The application field and service life of flexible nano-energy storage devices depend on the reliability of energy storage performance during flexible deformation. Flexibility is its unique, important evaluation index. Monitoring energy storage performance changes under bending conditions is a common method to evaluate its flexibility. However, the current bending test The specific process and evaluation parameters are not uniform, which is not conducive to the accurate evaluation and mutual comparison of flexible nano energy storage devices. The establishment of corresponding standard methods It is of great significance to the performance comparison and design and development of flexible nano energy storage devices.

1 Scope

This document describes the test method for the bending performance of flexible nano energy storage devices.

This document is suitable for evaluating the bending performance of flexible nano energy storage devices that can be repeatedly deformed by bending.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 30544.1 Nanotechnology Terminology Part 1: Core Terms

GB/T 30544.4 Nanotechnology Terminology Part 4: Nanostructured Materials

3 Terms and Definitions

GB/T 30544.1, GB/T 30544.4 and the following terms and definitions apply to this document.