Recently, the Consumer Products Industry Department of the Ministry of Industry and Information Technology issued a notice to dynamically manage enterprises that have entered the list of standardized announcements in accordance with the provisions of the "Management Measures for the Announcement of Lead Battery Industry Standards (2015 Edition)". After review, 11 enterprises including Tianjin Tangqian Battery Co., Ltd. no longer meet the regulatory requirements and plan to revoke their announcement qualifications. Lead acid battery, invented in 1859, is a type of battery with electrodes mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. In the discharge state of lead-acid batteries, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; In the charging state, the main component of the positive and negative electrodes is lead sulfate. Lead acid batteries are widely used in various economic fields such as transportation, communication, electricity, military, navigation, and aviation. According to the differences in structure and use of lead-acid batteries, they can be roughly divided into four categories: 1. lead-acid batteries for starting; 2. Lead acid batteries for power use; 3. Fixed valve controlled sealed lead-acid battery; 4. Other categories include small valve controlled sealed lead-acid batteries, lead-acid batteries for mining lamps, etc. The nominal voltage of a single cell lead-acid battery is 2.0V, which can discharge up to 1.5V and charge up to 2.4V. In applications, six single cell lead-acid batteries are often connected in series to form a nominal 12V lead-acid battery. There are also 24V, 36V, 48V, etc. There are many types and varieties of lead-acid batteries, and the current standards are as follows: CB/T3821-2013 Ship Communication Lighting lead-acid batteries CB/T4319-2013 Ship starting lead-acid batteries DL/T637-2019 Fixed valve regulated lead-acid batteries for power use GB/T13281-2008 Railway passenger car lead-acid batteries GB/T13337.1-2011 Fixed exhaust lead-acid batteries Part 1: Technical conditions GB/T13337.2-2011 Fixed exhaust lead-acid batteries Part 2: Specifications and dimensions GB/T19638.1-2014 Fixed valve regulated lead-acid batteries Pool Part 1: Technical Conditions GB/T19638.2-2014 Fixed Valve Regulated Lead Acid Batteries Part 2: Product Varieties and Specifications GB/T19639.1-2014 General Purpose Valve Regulated Lead Acid Batteries Part 1: Technical Conditions GB/T19639.2-2014 General Purpose Valve Regulated Lead Acid Batteries Part 2: Specifications and Models GB/T20839.2-2007 Small Valve Regulated Sealed Lead Acid Batteries Product Classification GB/T22199.1-2017 Valve Regulated Lead Acid Batteries for Electric Power Assisted Vehicles Battery Part 1: Technical Conditions GB/T22199.2-2017 Valve Regulated Lead Acid Batteries for Electric Power Assisted Vehicles Part 2: Product Varieties and Specifications GB/T22473-2008 Lead Acid Batteries for Energy Storage GB/T23638-2009 Lead Acid Batteries for Motorcycles GB/T24914-2010 Lead Acid Batteries for Off Highway Tourism and Sightseeing Vehicles GB/T32620.1-2016 Lead Acid Batteries for Electric Road Vehicles Part 1: Technical Conditions GB/T32620.2-2016 Electric Road Vehicles Lead acid batteries for vehicles - Part 2: Product varieties and specifications GB/T5008.1-2013 Starting lead-acid batteries - Part 1: Technical conditions and test methods GB/T5008.2-2013 Starting lead-acid batteries - Part 2: Product varieties, specifications and terminal dimensions, markings GB/T7403.1-2018 Traction lead-acid batteries - Part 1: Technical conditions
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