CBTL China Automotive Battery Research Institute Co., Ltd. CBTL China Automotive Battery Research Institute Co., Ltd. has been accepted to operate in the IECEE CB Scheme, under the responsibility of NCB TÜV Rheinland Japan Ltd. New standards in IECEE System on 30/06/2023 The following standards have been added to the CB Scheme: ELVH ISO 15118-5:2018 New standards in IECEE System on 25/06/2023 Th..