Jiyang D. Email & Phone Number

Jiangsu, China

Shanghai City, China

(1) As cell DRE (Design Release Engineer), ensure FF91 battery cell meets pack requirements and complies with China&US regulations, such as high-power discharge (920kW peak power for track race), fast charge (Max. 250kW, 10min for 200km+), cell certification including safety (GB/T 31484,31486 and GB 38031). Develop cell DVP/PVP and annual validation test items and provided to SQE. On site audit of cell supplier to ensure timely delivery of high-quality products. Analyze cell voltage and capacity after long term storage and follow up the expansion force test for potential cell thickness change. (2) Analyze 12V battery LTO cell data and provide current, voltage and temperature diagnostic threshold value(3) Assist on issue analysis and solving during battery pack development: such as cell DCR variation, isolation failure of B sample pack; Assist on pack cycle life DV test method and simulate battery pack life with empirical formula developed based on cell calendaring and cycle aging(4) BMS strategy development: Identified voltage compensation issue and cooperate with supplier to test the compensation value and implement in software; calculate current carrying capability of the Al fuse inside prismatic cell; Implement SOP follow up strategy to ensure high power requirement under track race mode. (5) Advanced cell technology tracking: including 4C+ fast charge, LMFP cell, solid state battery, Li-metal battery, Na-ion battery, etc, draft analysis report and published in FF APP. Completed heat generation analysis during fast charge of next generation 800V battery platform.(6) As quality system coordinator, reviewed more than 60 quality documents and released 5 quality documents of RD department

Suzhou, Jiangsu, China

1. NCA materials development and surface modification(a) Assist in the development of NCA(Ni82) cathode materials with specific capacity of 200mAh/g and ~98% capacity retention (coin cell after 200 cycles), in charge of the electrochemical performance evaluation (b) In charge of the development of NCA (Ni92) cathode materials with specific capacity of 210~220mAh/g and ~96% capacity retention(coin cell after 100 cycles)(c) In charge of NCA (Ni92) precursor development, with the ability to produce normal size precursor (D50:9~13µm) and small size precursor (D50:3~5µm) for single crystal product in 10kg scale, collaborate with external partners for the NCM precursor development. (d) In charge of surface modification work of Ni-rich materials to reduce surface Li residual and pH, while improve cycle stability. Awarded “JITRI Young Fellow” with this project. 2. Business development of Na-ion and spinel LNMO materials in ChinaSearching for raw materials supplier, contract manufacturer and potential partners for large scale production of Na-ion battery; As invited speaker in “2020 International Forum of Mn-based materials” to address the advances of high voltage spinel LNMO cathode materials developed by Topsoe.

Huzhou, Zhejiang, China

Project Manager-Cell Technology Management1. Supplier Management(a) Cell materials supplier technology review (STR)(b) In charge of Technical Agreement for cell components, including cathode, anode, electrolyte, separator, Al/Cu foil and Al pouch. 2. Project ManagementIn charge of 270Wh/kg cell project management collaborated with OEM, as well as fast charging project 220Wh/kg (2.5C) and 200Wh/kg (4C)(a) Forward development process: from Project SOR to Special Characteristics, to DFMEA and DVP, followed by Problem Lists, DVP&R(b) Lead weekly project meeting to ensure project quality, time and cost. (3) Integrated Management(i) IATF 16949:2016 Quality System(a) Assist in drafting APQP files based on IATF16949:2016 (b) Draft Cell Development Procedures files.(ii) Internal trainingProvide lithium ion battery cell training for Marketing, Corporate Strategy and Fresh Graduates with focus on cell energy density, fast charging, cycle life, safety and cost. (iii) Customer AuditIn charge of cell development for foreign customer audit

Huzhou, Zhejiang, China

R&D Engineer (Group Leader: Advanced Battery Materials)-Main Responsibilities: 1. Develop high energy density and long life lithium-ion battery cells (LIBs)(a) High energy LIBs: Si-C composite anode with Ni-rich cathode, cycle life of Si-C exceeds 700 (1C) (b) In charge of high capacity cathode development in collaboration with US company2. Battery aging analysis and cycle life prediction (a) Failure Analysis (FA): Explained the roll-over failure of NMC cell and developed model for life prediction(b) Energy maximizing: Analyze voltage relaxation behavior and improve 1C discharge capacity of NMC3. In charge of grant application: including “LTO-based Start-Stop battery program” and “Intelligent Manufacturing Program in Changxing County”. 4. Assist in oversea project: focus on EES batteries and high energy LIBs technologies. Invited speaker during the EES Europe hold in Munich May 2017. In charge of project collaboration with scientists from Stanford University, Waterloo University, Oxford University and Huston University.

Singapore

Marketing of ultrafast charging batteries (CREATE Program)• Secure research funding of more than 5 million Singapore dollars. Funding agency includes Singapore Ministry of Education, Singapore National Research Foundation and multinational companies, projects ranging from small scale coin size battery to large scale battery packs• Host the press release of the ultrafast charging batteries in October 2014, participated in the battery-related video recording of BBC; drafted the PPT for the TEDxYouth session about fast charging batteries in 2015• Participated in Battery Expos: Singapore TechInnovation, Urban Sustainability R&D Congress 2015, Battery Japan in Tokyo (2015) and CHINANO 2013 in Suzhou

School Of Materials Science And Engineering

Undergraduate Research Experience on Campus (FYP-URECA)Synthesis of high aspect-ratio titanate nanotubes via a modified hydrothermal method and evaluate its environmental application as a free-standing membrane. Participated in the Ureca Poster Competition 2012 and won Platinum Award(1st Award) and Peer Assessment Review Award

Singapore

Industrial Attachment (IA) Led silicone improvement project during rubber stopper disinfection washing process. Identified root causes and implemented appropriate solutions. Successfully reduced the failure rate of four products to zero. Validated heat sealer machine for sterilizable bag sealing applying Six Sigma management principle.Utilized various resources available to complete the project within time given.

School Of Materials Science & Engineering

Undergraduate Research Experience on Campus (URECA) Developed a visible light active photocatalysts to generate hydrogen from water. Investigated process parameters such as temperature and doping concentration on the properties of synthesized products. Participated in the URECA Poster Competition, presented the research output concisely and clearly to the board of judges, fellow peers and junior students. Won Peer Review Award.

Nanyang Technological University

Lead the designed project on evaluating the time effect of washing hands on the removal of bacteria on hands.Illustrated on the unexpected results that time does not affect removal of bacteria significantly as long as hands are rubbed vigorously.

Cooperated with different portfolios of the organizing committee to deliver program necessities. Liaised with MOE and Student Activity Center to ensure smooth flow of all programs.

Doctor Of Philosophy - Phd, Materials Engineering, 4.80

Develop ultrafast charging lithium-ion battery and supercapacitor with ultralong cycle life (PhD) • Developed ultrafast-charging.

B.Eng, Materials Engineering, 1St Class Honors

Activities and Societies: • Invited Speaker of MSE EduWeek (2012) • Invited Speaker of PRCSU Senior Forum (2011 and 2012) • Logistic.